about summary refs log tree commit diff
diff options
context:
space:
mode:
authorLeah Neukirchen <leah@vuxu.org>2019-11-28 17:38:10 +0100
committerLeah Neukirchen <leah@vuxu.org>2019-11-28 17:38:10 +0100
commite12436c99bb04897d6344b6351d0336e4c627573 (patch)
tree74f8afb9de5d2a466e5fe6225df3661e1280519e
parent05050c3b5e20d5d475894788df6c31f867d2c51a (diff)
downloadadventofcode2018-master.tar.gz
adventofcode2018-master.tar.xz
adventofcode2018-master.zip
add rest HEAD master
-rw-r--r--day05.rb21
-rw-r--r--day07.k14
-rw-r--r--day08.k3
-rw-r--r--day08.rb43
-rw-r--r--day09.rb54
-rw-r--r--day11.k6
-rw-r--r--day1234
-rw-r--r--day12.rb79
-rw-r--r--day13150
-rw-r--r--day13.rb137
-rw-r--r--day141
-rw-r--r--day14.rb25
-rw-r--r--day15.rb32
-rw-r--r--day164014
-rw-r--r--day16.rb92
-rw-r--r--day1850
-rw-r--r--day18.rb95
-rw-r--r--day1937
-rw-r--r--day19.rb86
-rw-r--r--day201
-rw-r--r--day20.rb48
-rw-r--r--day2132
-rw-r--r--day21.rb67
-rw-r--r--day222
-rw-r--r--day22.rb34
-rw-r--r--day231000
-rw-r--r--day23.rb21
-rw-r--r--day2423
-rw-r--r--day251315
-rw-r--r--day25.rb34
30 files changed, 7550 insertions, 0 deletions
diff --git a/day05.rb b/day05.rb
new file mode 100644
index 0000000..ce5fd2e
--- /dev/null
+++ b/day05.rb
@@ -0,0 +1,21 @@
+t = s = File.read("day05").chomp
+
+v = ('a'..'z').map { |l| ["#{l}#{l.upcase}", "#{l.upcase}#{l}"] }.flatten
+r = Regexp.union v
+
+p r
+
+while s.gsub!(r, '')
+end
+
+p s.size
+
+# 9687 too high
+
+p ('a'..'z').map { |l|
+  s = t.delete "#{l}#{l.upcase}"
+  while s.gsub!(r, '')
+  end
+  p [l, s.size]
+  s.size
+}.min
diff --git a/day07.k b/day07.k
new file mode 100644
index 0000000..ebb0a13
--- /dev/null
+++ b/day07.k
@@ -0,0 +1,14 @@
+ +(1:`day07)@'/:5,36
+
+/ d[;36]@=(d:1:`day07)[;5]
+m: d[;5]@=(d:1:`day07)[;36]
+
+s: ?(,/m)^m
+
+
+ m: d[;5]@=(d:1:`day07)[;36]
+ m:{x@<x}'m
+
+s: (!m)^(,/m)
+
+/ wrong BDNGEVOQYHLWXPSUAMZJIKRTFC
\ No newline at end of file
diff --git a/day08.k b/day08.k
new file mode 100644
index 0000000..4770580
--- /dev/null
+++ b/day08.k
@@ -0,0 +1,3 @@
+d:2 3 0 3 10 11 12 1 1 0 1 99 2 1 1 2
+
+t:{}
\ No newline at end of file
diff --git a/day08.rb b/day08.rb
new file mode 100644
index 0000000..a51543b
--- /dev/null
+++ b/day08.rb
@@ -0,0 +1,43 @@
+d=File.read("day08").split.map(&:to_i)
+
+def t(d)
+  return 0  if d.empty?
+
+  len = d.shift
+  md = d.shift
+
+  mds = 0
+  (0...len).map {
+    mds += t(d)
+  }
+  mds += d.shift(md).sum
+end
+
+def s(d)
+  return 0  if d.empty?
+
+  len = d.shift
+  md = d.shift
+
+  mds = (0...len).map {
+    s(d)
+  }
+  
+  m = d.shift(md)
+
+  if len == 0
+    m.sum
+  else
+    m.map { |i|
+      if i <=0 || i > mds.size
+        0
+      else
+        mds[i-1]
+      end
+    }.sum
+  end
+end
+
+p t(d.clone)  # 35852
+p s(d.clone)  # 33422
+
diff --git a/day09.rb b/day09.rb
new file mode 100644
index 0000000..ed76465
--- /dev/null
+++ b/day09.rb
@@ -0,0 +1,54 @@
+s = [0]
+
+m = 1
+i = 0
+
+mp = 9
+mr = 25
+
+mp = 10
+mr = 1618
+=begin
+
+mp = 13
+mr = 7999
+
+mp, mr =  File.read("day09").scan(/\d+/).map(&:to_i)
+mr *= 100  # part 2
+
+p mr
+=end
+
+scores = Hash.new(0)
+
+catch(:done) {
+loop {
+  (1..mp).each { |p|
+    print m, " ", i, " ", s.size, " "
+    p s
+
+    if m % 23 == 0
+      scores[p] += m
+      print "score1 #{p} #{m}\n"
+      i = (i - 8) % s.size
+      print "score2 #{p} #{s[i]}\n"
+      scores[p] += s.delete_at(i)
+      
+      i = (i+1)%s.size
+      m += 1
+    else
+      i += 1
+      s.insert(i, m)
+      i = (i+1)%s.size
+      m += 1
+    end
+
+    p m  if m % 100000 == 0
+
+    throw :done if m >= mr+1
+  }
+}
+}
+
+p scores
+p scores.values.max  # 382055
diff --git a/day11.k b/day11.k
new file mode 100644
index 0000000..e2b88f9
--- /dev/null
+++ b/day11.k
@@ -0,0 +1,6 @@
+d:7857
+v:{{-5+`i$x[2]}@|$r*d+(*|x)*r:*:x+10}''300 300#+!300 300
+","/:'$1_'{x[2,*>x]}@{s::x;({x@*>x}@{(+/(v .)'+x+!2#s),x,s}'+!2#300-s)}'1+!22
+
+/ 243,16
+/ 231,227,14
diff --git a/day12 b/day12
new file mode 100644
index 0000000..1ca818c
--- /dev/null
+++ b/day12
@@ -0,0 +1,34 @@
+initial state: ##.####..####...#.####..##.#..##..#####.##.#..#...#.###.###....####.###...##..#...##.#.#...##.##..
+
+##.## => #
+....# => .
+.#.#. => #
+..### => .
+##... => #
+##### => .
+###.# => #
+.##.. => .
+..##. => .
+...## => #
+####. => .
+###.. => .
+.#### => #
+#...# => #
+..... => .
+..#.. => .
+#..## => .
+#.#.# => #
+.#.## => #
+.###. => .
+##..# => .
+.#... => #
+.#..# => #
+...#. => .
+#.#.. => .
+#.... => .
+##.#. => .
+#.### => .
+.##.# => .
+#..#. => #
+..#.# => .
+#.##. => #
diff --git a/day12.rb b/day12.rb
new file mode 100644
index 0000000..288d34f
--- /dev/null
+++ b/day12.rb
@@ -0,0 +1,79 @@
+s="#..#.#..##......###...###"
+
+t = {
+"...##"=>"#",
+"..#.."=>"#",
+".#..."=>"#",
+".#.#."=>"#",
+".#.##"=>"#",
+".##.."=>"#",
+".####"=>"#",
+"#.#.#"=>"#",
+"#.###"=>"#",
+"##.#."=>"#",
+"##.##"=>"#",
+"###.."=>"#",
+"###.#"=>"#",
+"####."=>"#",
+}
+
+s="##.####..####...#.####..##.#..##..#####.##.#..#...#.###.###....####.###...##..#...##.#.#...##.##.."
+
+t={
+"##.##"=>"#",
+"....#"=>".",
+".#.#."=>"#",
+"..###"=>".",
+"##..."=>"#",
+"#####"=>".",
+"###.#"=>"#",
+".##.."=>".",
+"..##."=>".",
+"...##"=>"#",
+"####."=>".",
+"###.."=>".",
+".####"=>"#",
+"#...#"=>"#",
+"....."=>".",
+"..#.."=>".",
+"#..##"=>".",
+"#.#.#"=>"#",
+".#.##"=>"#",
+".###."=>".",
+"##..#"=>".",
+".#..."=>"#",
+".#..#"=>"#",
+"...#."=>".",
+"#.#.."=>".",
+"#...."=>".",
+"##.#."=>".",
+"#.###"=>".",
+".##.#"=>".",
+"#..#."=>"#",
+"..#.#"=>".",
+"#.##."=>"#",
+}
+
+s = ("."*1000) + s + (".")*1000
+
+r = 0
+(1..1000).each { |i|
+  s = "..#{s}..".chars.each_cons(5).map { |c|
+    t[c.join] || "."
+  }.join
+
+  if i == 20 || i == 500 || i == 1000
+    r = 0
+    s.chars.each_with_index { |c, i|
+      if c == "#"
+        #    p i-10
+        r += i-1000
+      end
+    }
+    
+    p [i,r]
+  end
+}
+
+# 1000..2000 adds up to 32000
+p r + ((50000000000/1000)-1)*32000  # 1600000032081
diff --git a/day13 b/day13
new file mode 100644
index 0000000..e6855b9
--- /dev/null
+++ b/day13
@@ -0,0 +1,150 @@
+                                                      /------------------------------------------------------------------------------------------\    
+                                /---------------------+---------------------------------------------\                                            |    
+           /--------------------+---------------------+--------------------------------\            |                      /------------\        |    
+           |                    |                 /---+--------------------------------+------------+----------------------+------------+--------+---\
+           |/-------------------+-----------------+---+\                /--------------+---------\  |                      |            |        |   |
+    /------++-----------\       |                 |   ||      /---------+\             |         |  |                      |            |        |   |
+    |      ||           |       |          /------+---++------+---------++-------------+---------+--+-----\                |            |        |   |
+    |      ||           |       |          |      |/--++------+---------++-------\   /-+--------\|  |     |                |            |        |   |
+    |      ||   /-------+-------+----------+\     ||  ||      |         ||       |   | |        ||  |     |                |            |        |   |
+    |    /-++---+-------+-----\ |/---------++-----++--++------+---------++-------+---+-+--------++--+-----+-----------\    |            |        |   |
+    |    | ||   |       |     | ||     /---++-----++--++------+---------++-------+---+-+\       ||  |     |           |    |            |        |   |
+    |    | ||   |       |     | ||     |   ||     ||  ||      |         ||/------+---+-++-------++--+-----+-----------+----+-\          |        |   |
+    |    | ||   |       |     | ||     |   ||    /++--++------+---------+++------+---+-++-------++--+-----+--\        |    | |          |        |   |
+   /+----+-++---+-------+-----+-++-----+---++----+++--++->----+---------+++------+-\ | ||       ||  |     |  |        |    | |          |        |   |
+   ||    | ||   |/------+-----+-++-----+---++----+++--++------+---------+++------+-+-+-++-------++--+-----+--+-------\|    | |          |        |   |
+   ||    | ||   ||      |     | ||     |   ||    |||  ||      |         |||      | | | ||    /--++--+-----+--+-------++----+-+---\      |        |   |
+   ||    | ||   ||      |     | ||     | /-++----+++--++----\ |         |||      | | | ||    |  ||  |     |  |       ||    | |   |      |        |   |
+   || /--+-++---++------+-----+-++-----+-+-++----+++--++----+-+---------+++---\  | | | ||    |  ||  |     |  |       ||    | |   |      |        |   |
+   || |  \-++---++------+-----/ ||     | | ||    |||/-++----+-+---------+++---+--+-+-+-++----+--++--+-----+-\|       ||    | |   |  /---+--------+--\|
+   || |    ||   ||      |       ||    /+-+-++----++++-++----+-+---------+++---+--+-+-+-++----+--++--+-----+\||     /-++----+-+-\ |  |   |        |  ||
+   || |    ||   ||      |       ||  /-++-+-++----++++-++----+-+---------+++---+--+-+-+-++----+--++--+-----++++-\   | ||    | | | |  |   |        |  ||
+   || |    ||   ||      |       ||  | || | ||    |||| ||    | |         ||\---+--+-+-+-++----+--++--+-----++++-+---+-++----+-/ | |  |   |        |  ||
+   || |    ||   ||      |       ||  | || | ||    |||| ||    |/+---------++----+--+-+-+-++----+--++--+---\ |||| |   | ||    |   | |  |  /+-------\|  ||
+   || |    ||   ||      |       ||  | || | ||    |||| ||    |||         ||    |/-+-+-+-++----+--++--+---+-++++-+---+-++-\  |   | |  |  ||       ||  ||
+   || |    ||   ||      |       ||  | || | ||/---++++-++----+++---------++----++-+-+-+-++----+--++--+---+-++++-+---+-++-+\ |   | |  |  ||       ||  ||
+   || |    ||   ||  /---+-------++--+-++-+-+++---++++-++----+++---------++----++-+-+-+-++----+--++--+---+-++++-+---+-++-++-+-\ | |  |  ||       ||  ||
+  /++-+----++---++--+---+--\    ||  | || | |||   |||| ||    |||         ||    || | | | ||    |/-++--+---+-++++-+---+-++-++-+-+-+-+--+--++\      ||  ||
+  ||| |    ||   ||  |   |  |    ||  | || | \++---++++-++----+++---------++----++-+-+-+-++----++-++--+---+-/||| |/--+-++-++-+-+-+-+--+--+++---\  ||  ||
+  ||| |/---++---++--+---+--+----++\ | || |  ||   |||| ||    |||         \+----++-+-+-+-++----++-+/  |   |  ||| ||  | || || | | | |  |  |||   |  ||  ||
+  ||| ||   ||  /++--+---+--+----+++-+-++-+--++---++++-++----+++----------+----++-+-+-+\||    || |   |   |  ||| ||/-+-++-++-+-+-+-+--+--+++---+--++-\||
+  ||| ||   ||  |||  |   |  |    ||| | || |  ||   |||| ||    |||      /---+----++-+-+-++++----++-+---+---+--+++-+++-+-++-++-+-+-+-+--+-<+++---+\ || |||
+  ||| ||/--++--+++-\|   |  |    ||| | || |  ||   |||\-++----+++------+---+----++-+-+-++++----++-+---+---+--+/| ||| \-++-++-+-+-/ |  |  |||   || || |||
+  ||| |||  ||/-+++-++-\ | /+----+++-+-++-+--++---+++--++----+++------+---+----++-+-+-++++----++-+---+---+--+-+-+++---++-++\| |   |  |  |||   || || |||
+  ||| |||  ||| ||| || | | ||    ||| | || |  ||   |||  || /--+++------+---+----++-+\| ||||    || |   |   |  | | |||   || |||| |   |  |  |||   || || |||
+  ||| |||  ||| ||| || | | ||    ||| | || |  ||   |\+--++-+--+++------+---+----++-+++-++++----++-+---+---+--+-+-+++---++-++++-+---+--+--+++->-++-++-++/
+  ||| |||  ||| ||| || | | ||    ||| | || |/-++---+-+--++-+--+++->----+---+----++-+++-++++----++-+---+---+--+-+-+++---++-++++-+---+\ |  |||   || || || 
+  ||| |||  ||| ||| || | | ||    ||| | || ||/++---+-+--++-+--+++------+---+----++-+++-++++----++-+---+---+--+-+-+++---++-++++-+---++-+--+++---++\|| || 
+  |\+-+++--+++-+++-++-+-+-++----+++-+-++-+++++---+-+--++-+--+++------+---+----++-++/ ||||    || |   |   |  | | |||   || |||| |   || |  |||   ||||| || 
+  | | |||  ||| ||\-++-+-+-++----+++-+-++-+++++---+-+--++-+--+++------+---+----++-++--++++----++-+---+---+--+-+-+++---/| |||| |   || |  |||   ||||| || 
+  | | |||  ||| ||/-++-+-+-++----+++\| || \++++---+-+--++-+--/||      |   |    || ||  ||||    || |   |   |  | | |||    | |||| |   || |  |||   ||||| || 
+  | | |||  ||| ||| || | | ||    ||||| ||/-++++---+-+--++-+---++------+---+----++-++--++++----++-+---+---+--+-+\|||    | |||| |   || |  |||   ||||| || 
+  | | |||  ||| |||/++-+-+-++--\ ||||| ||| ||||  /+-+--++-+---++------+---+----++-++--++++--\ || |   |   |  | |||||    | |||| |   || |  |||   ||||| || 
+  | | |||  ||| |||||| | | ||  | ||||| ||| ||||  || |  || |   ||      |   |    |\-++--++++--+-++-+---+---+--+-+++++----+-/||| |   || |  |||   ||||| || 
+  | | |||  ||| |||||^ | | ||  | ||||| ||| ||||  || |  \+-+---++------+---+----+--++--++++--+-++-+---+---+--+-+++++----+--+++-+---++-+--+++---++++/ || 
+  |/+-+++--+++-++++++-+-+-++--+-+++++-+++-++++--++-+---+-+---++------+---+----+--++--++++--+-++-+---+---+\ | |||||    |  ||| |   || |  |||   ||||  || 
+  ||| |||  ||| |||||| | | ||  | |||||/+++-++++--++-+---+-+---++------+---+----+--++--++++--+-++-+---+---++-+-+++++\   |  ||| |   || |  |||   ||||  || 
+  ||| |||  ||| |||||| | | ||  | \++++++++-++++--++-+---+-+---++------+---+----+--++--++++--+-++-+---/   || | ||||||   |  ||| |   || |  |||   ||||  || 
+/-+++-+++--+++-++++++-+-+-++--+--++++++++-++++--++-+---+-+---++------+---+----+--++--++++--+-++-+--\    || | ||||||   |  ||| |   || |  |||   ||||  || 
+| ||| |||  v|| \+++++-+-+-++--+--++++++++-++++--++-+---+-+---++------+---+----+--++--+/||  | || |  |    || | ||||||   |  ||| |   || |  |||   ||||  || 
+| ||| |||  |||  ||||| |/+-++--+--++++++++-++++--++-+---+-+---++------+---+----+--++--+-++-\| || | /+----++-+-++++++---+--+++-+--\|| |  |||   ||||  || 
+| ||| |||  |||  ||||| ||| ||  |  \+++++++-++++--++-+---+-+---++------+---+----+--++--+-++-++-++-+-++----++-+-++++++---/  ||| |  ||| |  |||   ||||  || 
+| ||\-+++--+++--+++++-++//++--+---+++++++-++++--++-+---+-+---++--\   |   |  /-+--++--+-++-++-++-+-++--\ || | ||||||      ||| |  ||| |  |||   ||^|  || 
+| ||  |||  \++--+++++-++-+++--+---+++++++-++++--++-+---+-+---++--+---+---+--+-+--++--+-/| || || | ||  | || | ||||||      ||| |  ||| |  |||   ||||  || 
+| ||  |||   ||/-+++++-++-+++--+---+++++++-++++-\|| |   | \---++--+---+---+--+-+--+/  |  | || || | ||  | || | ||||||      ||\-+--+++-+--+/|   ||||  || 
+| ||  \++---+++-+++++-++-+++--+---+++++++-++++-+++-+---+-----++--+---+---+--+-/  |   |  | || || | ||  | || | ||||||      ||/-+--+++-+--+-+---++++-\|| 
+| ||   ||   ||| ||||| || |||  |   ||||||| |||| ||| |   |     ||  |   |/--+--+----+-\ |  | || || | ||  | || | ||||\+------+++-+--+++-+--+-+---++++-+/| 
+| ||   ||   ||| ||||| || |||  |   ||||||| |||| ||| |   |     ||  |   ||  |/-+----+-+-+--+-++-++-+-++--+-++-+-++++-+------+++-+--+++\|  | |   |||| | | 
+| ||   ||   ||| ||||| || ||| /+---+++++++-++++-+++-+---+-----++--+---++--++-+----+-+-+\ | || || | ||  | || | |||| |      ||| |  |||||  | |   |||| | | 
+| ||   ||  /+++-+++++-++-+++-++---+++++++-++++-+++-+---+-----++--+---++--++-+----+-+-++-+-++-++-+\||  | || | |||| | /----+++-+\ |||||  | |   |||| | | 
+| ||   ||/-++++-+++++-++-+++-++-\ ||||||| |||| |||/+---+-----++--+---++--++-+----+-+-++-+-++\\+-++++--+-++-+-++++-+-+----+++-++-+/|||  | |   |||| | | 
+| ||   ||| |||| ||\++-++-+++-+/ | ||||||| |||| |||||   | /---++--+--\||  || |    | | || | ||| | ||||  | || | |||| | |    ||| || | |||  | |   |||| | | 
+| ||   ||| |||| || || || ||| |  | ||||||| |||| |||||   | |   ||  |  |||  || |    | | \+-+-+++-+-/|||  | || | |||| | ^    ||| || | ||\--+-+---++++-+-/ 
+| ||   ||| |||| || || || ||| |  | |||||||/++++-+++++---+-+---++--+--+++--++-+----+-+--+-+-+++-+--+++--+-++-+-++++-+-+----+++-++-+\||   | |   |||| |   
+| ||   ||| |||| || || || ||| |  | |||||||||||| |||||   | |   ||  |  |||  || |    | |  | | ||| |  |||  | || | |||| | |    ||| || ||||   | |   |||| |   
+| ||   ||| |||| || || || ||| | /+-++++++++++++-+++++---+-+---++--+--+++--++-+----+-+--+-+-+++-+--+++--+-++-+-++++-+-+----+++-++-++++--\| |   |||| |   
+| ||   |\+-++++-++-/| || ||| | || |||||||||||| |||||   | |   ||/-+--+++--++-+----+-+--+-+-+++-+--+++--+-++-+-++++-+-+--\ ||| || ||||  || |   |||| |   
+| ||   | | |||| ||  | || ||| | || |||||\++++++-+++++---+-+---+++-+--+++--++-+----+-+--+-/ ||| |  |||  | || | |||| | |  | ||| || ||||  || |   |||| |   
+| ||   | | |||| ||  | || \++-+-++-+++++-++++++-+++++---+-+---+++-/  |||  || |    | |  |   ||| |  |||  | || | |||| | |  | ||| || ||||  || |   |||| |   
+| ||   | | |||| ||  | ||  \+-+-++-+++++-++++++-+++++---+-+---+++----+++--++-+----+-+--+---+++-+--+++--+-++-+-++++-+-+--+-+/| || ||||  || |   |||| |   
+| ||   | | |||\-++--+-++---+-+-++-+++++-++++++-/||||   | |   |||    |||  || |    | |  |   ||| |  |||  | || | |||| | |  | | | || ||||  || |   |||| |   
+| ||   | | ||\--++--+-/|   | | || ||||| ||||||  ||||   | |   |||   /+++--++-+----+-+--+---+++-+--+++--+-++-+-++++-+\|  | | | || ||||  || |   |||| |   
+| || /-+-+-++---++--+--+---+-+-++-+++++-++++++--++++---+-+---+++---++++--++-+----+-+--+---+++-+--+++-\| || | |||\-+++--+-+-+-++-++++--++-+---/||| |   
+| || | | | ||   ||  |  | /-+-+-++-+++++-++++++--++++---+-+---+++---++++--++-+----+-+-\|   ||| |  ||| || || | |v|  |||  | | | || ||||  || |    ||| |   
+| || | | | ||/--++--+--+-+-+-+-++-+++++\||||||  ||||   | |   |||   ||||  || |    | | ||   ||| |  ||| || || | |||  |||  | | | || ||||  || |    ||| |   
+| || |/+-+-+++--++--+--+-+-+-+-++-++++++++++++--++++---+-+\ /+++---++++--++-+----+-+-++---+++-+--+++-++-++-+-+++--+++--+-+-+-++-++++--++-+---\||| |   
+| || ||| | |||  ||  |  | | | \-++-++++++++++++--++++---+-++-++++---++++--++-+----+-+-+/   ||| |  ||| || || | |||  |||  | | | || ||||  || |   |||| |   
+| || ||| | \++--++--+--+-+-+---++-++++++++++++--++++---+-++-++++---++++--++-+----+-+-+----+++-+--/|| || || | |||  |||  | | | || ||||  || |   |||| |   
+| || ||| |  ||  ||  |/-+-+-+---++-++++++++++++--++++---+-++-++++---++++--++-+----+-+-+---\||| |   || || || | |||  |||  | | | || ||||  || |   |||| |   
+| || ||| |  ||  ||  || | | |   || ||||||||||||  ||\+---+-++-++++---++++--++-+----+-+-+---+++/ |   || || || | |||  |||  | | | || ||||  || |   |||| |   
+| || ||| |  ||  ||  || | | |   || |||\++++++++--++-+---+-++-++++---++++--++-+----+-+-+---+++--+---++-++-++-+-+++--/||  | | | || ||||  || |   |||| |   
+| || ||| |  ||  ||  || | | |   || ||| ||||||||  || \---+-++-++++---++++--++-+----/ | |/--+++--+---++-++-++-+-+++---++--+-+-+-++-++++--++\|   |||| |   
+| || ||| \--++--++--++-+-+-+---+/ ||| |||||\++--++-----+-++-++++---++++--++-+------+-++--+++--+---++-++-++-+-+++---++--+-+-+-++-++++--++++---++/| |   
+| || |||    ||  ||  || | | |   |  ||| ||||| ||  ||     | || ||||   ||||  || |  /---+-++--+++--+---++-++-++-+-+++---++-\| | | || ||||  ||||   || | |   
+| || |||    |\--++--++-+-+-+---+--+++-+/||| ||  ||     | || ||||   ||||  || |  |   | ||  |||  |   || || || | |||   || || | | || ||||  ||||   || | |   
+| || |||    |   || /++-+-+-+---+--+++-+-+++-++--++-----+-++-++++---++++\ || |/-+---+-++--+++--+---++-++-++-+-+++---++-++-+-+-++-++++--++++-\ || | |   
+| || |||    |   || ||| | | |   |  ||| |/+++-++--++-----+-++-++++---+++++-++-++-+---+-++--+++--+\  || || || | |||   || || | | || ||||  ||||/+-++-+-+\  
+| || |||    |   || ||| | | |   |  ||| ||||| ||  ||     | || |v|| /-+++++-++-++-+---+-++--+++--++--++-++-++-+-+++---++-++-+-+-++-++++\ |||||| || | ||  
+| || |||    |   || ||| | | |   |  ||| ||||| ||  ||     | || |||| | ||||| || || |  /+-++--+++--++--++-++-++-+-+++---++\|| | | || ||||| |||||| || | ||  
+| || |||    |   || ||| | | |   |  ||| ||||| ||  ||   /-+-++-++++-+-+++++-++-++-+--++-++--+++--++--++-++-++-+-+++---+++++-+-+-++-+++++\|||||| || | ||  
+| || |||    |   || ||| | | |   |  ||| ||||| ||  ||   | | || |||| | ||||| ||/++-+--++-++--+++--++--++-++-++-+-+++---+++++-+-+-++\|||||||||||| || | ||  
+| || |||    |   || ||| | | |   |  ||| ||||| ||  ||   | | || \+++-+-+++++-+++++-+--++-++--+++--++--++-++-++-+-+++---+++++-+-+-+++++++++++++++-/| | ||  
+| \+-+++----+---++-+++-+-+-/   v  ||| ||||| ||  ||   | | ||  ||| | |||\+-+++++-+--+/ ||  |||  ||  || || || | |||   ||||| | | |||||||||||||||  | | ||  
+|  | |||    |/--++-+++-+-+-----+--+++-+++++-++--++---+-+-++--+++-+-+++-+-+++++-+--+--++--+++--++-\|| || || | |||   ||||| | | |||||||||||||||  | | ||  
+|  | |||    ||  || ||| | |     |  ||| ||||| |\--++---+-+-++--+++-+-+++-+-+++++-+--+--++--+++--++-+++-++-++-+-+++---+++++-/ | |||||||||||||||  | | ||  
+|  | |||    || /++-+++-+-+-----+--+++-+++++-+-\ ||   | | ||  ||| | ||| | ||||| |  |  ||  |||  || ||| || || | |||   |||||   | |||||||||||||||  | | ||  
+|  | |||    || ||| ||| | |     |  ||| ||||| | | ||   | | ||  ||| | ||| | ||||| |  |  ||  |||  || ||| || || | |||   |\+++---+-+/|||||||||||||  | | ||  
+|  | |||    || ||| ||| | |     |  ||| ||||| | | ||   | | ||  ||| | ||| | ||||| |  |  ||  |||  || ||| || || | |||   | |||   | | |||||||||||||  | | ||  
+|  | |||    || ||| ||| \-+-----+--+++-+++++-+-+-++---+-+-++--+++-+-+++-+-+++++-+--+--++--+/|  || ||| || || | |||   | |||   | | |||||||||||||  | | ||  
+|  | |||    || ||| |||   |     |  ||| ||||| | | ||   | | \+--+++-+-+/| | ||||| |  |  ||  | |  || ||| || || | |||   | |||   | | |||||||||||||  | | ||  
+|  | |||    \+-+++-+++---+-----+--+++-+++++-+-+-++---+-/  |  ||| | | | | ||||| |  |  ||/-+-+--++-+++-++\|| | |||   | |||   | | |||||||||||||  | | ||  
+|  | |||     | ||| |||   |     |  ||| ||||| | | |\---+----+--+++-+-+-+-+-+++++-+--+--+++-+-+--++-+++-+++++-+-/||   | |||   | | ||||||||\++++--+-/ ||  
+|  | |||     | ||| |||   |     |  ||| ||||| | | |    |    |  ||| | | | | ||||| |  |  ||| | |/-++-+++-+++++-+--++---+-+++--\| | |||||||| ||||  |   ||  
+|  \-+++-----+-+++-+++---+-----+--+++-+++++-+-+-+----+----+--+++-+-+-+-+-+++++-+--+--+++-+-++-++-+++-++++/ |/-++---+-+++--++-+-++++++++-++++--+---++\ 
+|    ^||     | |||/+++---+-----+--+++-+++++-+-+-+----+----+--+++-+-+-+-+-+++++-+-\|  ||| | || || ||| ||||  || ||   | |||  || | |||||||| ||||  |   ||| 
+|    |||     | |||||||   |     |  ||| ||||| | | |    |    |  ||| | | | | ||\++-+-++--+++-+-++-++-+++-++++--++-++---+-+++--++-+-/||||||| ||||  |   ||| 
+|    |||     | |||||||   |     |  ||\-+++++-+-+-+----+----+--+++-+-+-+-+-++-++-+-++--+++-+-++-++-+++-++++--++-+/   | |||  || |  ||||||| ||||  |   ||| 
+|    ||\-----+-+++++++---+-----+--/|  ||||| | | |    |    |  ||| | | | | ||/++-+-++--+++-+-++-++\||| ||||  || |    | |||  || |  ||||||| ||||  |   ||| 
+|    ||      | |||||||   \-----+---+--+++++-+-+-+----+----+--+++-+-+-+-+-+++++-+-++--/|| | || |||||| ||||  || |    | |||  || |  ||||||| ||||  |   ||| 
+|    ||      | ||||||\---------+---+--+++++-+-+-+----+----+--+++-+-+-+-+-+++++-+-++---++-/ || |||||| ||||  || |    | |||  || |  ||||||| ||||  |   ||| 
+|    ||      | |\++++----------+---+--+++++-/ | |    |    |  |\+-+-+-+-+-/|||| | ||   ||   || |||||| ||||  || |    | |||  || |  ||||||| ||||  v   ||| 
+|    ||      | | ||||          |   |  ||\++---+-+----+----+--+-+-+-+-+-+--++++-+-++---++---++-++++++-++++--++-/    | |||  || |  ||||||| ||||  |   ||| 
+|    ||      | | ||||          |   |  || ||   | |    |    |  | \-+-+-+-+--++++-+-++---++---++-++++++-++++--++------+-++/  || |  ||||||| ||||  |   ||| 
+|    ||      | | ||||          \---+--++-++---+-+----+----+--+---+-+-+-+--++++-+-++---++---++-++++++-++++--++------+-++---++-+--++++++/ ||||  |   ||| 
+|    ||      | \-++++--------------+--++-++---/ |    |    |  |   | | | |  |||| | ||   |\---++-++++++-++/|  ||      | ||   || |  ||||||  ||||  |   ||| 
+|    ||      |   ||||              |  || ||     |    |    |  |   | | | |  |||| | ||   |/---++-++++++-++-+--++----\ | ||   || |  ||||||  ||||  |   ||| 
+|    ||      |   ||||              |  || ||   /-+----+----+--+---+-+-+-+--++++-+-++---++---++-++++++-++-+--++----+-+-++--\|| |  ||||||  ||||  |   ||| 
+|    ||      |   ||||              |  || \+---+-+----+----+--+---+-+-+-+--++++-+-++---++---++-++++++-++-+--++----+-+-++--+++-+--+/||||  ||||  |   ||| 
+|    ||      |   |||\--------------+--++--+---+-+----+----+--+---+-+-+-+--++++-+-++---++---++-++++++-++-+--++----+-+-++--+++-/  | ||||  ||||  |   ||| 
+|    ||      |   |||   /-----------+--++--+---+-+----+----+--+---+-+-+-+--++++-+-++--\||   || |||||| || |  ||    | | ||  |||    | ||||  ||||  |   ||| 
+|    ||      |   |||   |           |  \+--+---+-+----+----+--+---+-+-+-+--++++-+-++--+++---++-++++++-++-+--/|    | | ||  |||    | ||||  ||||  |   ||| 
+|    |\------+---+++---+-----------+---+--+---+-+----+----/  |   | | | |  |||| | ||  |||   || |||||| || |   |    | | ||  |||    | ||||  ||||  |   ||| 
+|    |       |   |||   |           |   |  |   | |    |       \---+-+-+-+--++++-+-++--+++---++-++++++-++-/   |    | | ||  |||    | ||||  ||||  |   ||| 
+|    |       |   |||   |           |   |  |/--+-+----+-----------+-+-+-+--++++-+-++--+++---++-++++++-++-----+----+-+-++--+++-\  | ||||  ||||  |   ||| 
+|    |       |   ||\---+-----------+---+--++--+-+----+-----------+-+-+-/  |||| | ||  |||   || |||||| ||     |    | | ||  ||| |  | ||||  ||||  |   ||| 
+|    |       |   ||    |        /--+---+--++\ | |    |           | \-+----++++-+-++--+++---++-++++++-++-----+----+-/ ||  ||| |  | ||||  ||||  |   ||| 
+|    |       |   ||    |        |  |   |  ||| | |    |           |   |    |||| | ||  |||   || |||||| ||     |    |   ||  ||| |  | ||||  ||||  |   ||| 
+|    |       |   ||    |        |  |   |  ||| | |    |           |   |    |||| | ||  |||   |\-++++++-++-----+----+---++--+/| |  | ||||  ||\+--+---+/| 
+|    |       |   ||    \--------+--+---+--+++-+-+----+-----------+---+----++++-+-++--/||   |  \+++++-++-----+----+---++--+-+-+--+-++++--+/ |  |   | | 
+|    |       |   ||             |  |   |  \++-+-+----+-----------+---+----++++-+-++---++---+---+++++-++-----+----+---++--+-+-+--+-/|||  |  |  |   | | 
+|    |     /-+---++--------\    |  |   |   || | |    |           |   |    ||\+-+-++---++---+---+++++-+/     |    |   ||  | | |  |  |||  |  |  |   | | 
+|    |     | |   ||        |    |  |   |   || | |    |           \---+----++-+-+-++---++---+---+++++-+------+----+->-++--+-+-+--+--+/|  |  |  |   | | 
+|    |     | |   ||        |    |  |   |   || | |    |               |    || \-+-++---++---+---+++++-+------+----+---++--+-+-+--+--+-+--+--/  |   | | 
+|    |     | |   \+--------+----+--/   |   \+-+-+----+---------------+----++---+-++---++---+---+++++-+------+----+---++--+-+-/  |  | |  |     |   | | 
+\----+-----+-+----+--------+----+------+----+-+-+----+---------------+----++---+-++---++---+---++++/ |      |    |   ||  | |    |  | |  |     |   | | 
+     |     | |    |        |    |      |    | | |    |       /-------+----++---+-++---++---+---++++--+---\  |    |   ||  | |    |  | |  |     |   | | 
+     |     | |    |        |    |      \----+-+-+----+-------+-------+----++---+-++---++---+---/|||  |   |  |    |   ||  | |    |  | |  |     |   | | 
+     |     | |    |        |    |           | | |    |       |       |    ||   | ||   ||   |    |||  |   |  \----+---++--+-+----+--+-+--+-----+---+-/ 
+     |     | |    |        |    |           | | |    |       |       |    ||   | |\---++---+----+++--+---+-------+---/|  | \----+--+-+--+-----+---/   
+     |     | |    |        |    |           | | |    |       |       \----++---+-+----++---+----+++--+---+-------+----+--+------+--+-+--+-----/       
+     |     | |    |        |    |           | | |    |       |            \+---+-+----++---+----+++--+---+-------+----+--+------+--/ |  |             
+     |     | |    |        |    |           | | \----+-------+-------------+---+-+----++---/    |||  |   |       |    |  |      |    |  |             
+     |     \-+----+--<-----/    |           | |      |       |             |   | |    \+--------+++--+---+-------+----+--+------+----+--/             
+     |       |    \-------------+-----------+-+------+-------+-------------+---+-/     \--------+++--+---+-------/    |  |      |    |                
+     |       |                  \-----------/ |      |       |             |   \----------------+++--+---+------------/  |      |    |                
+     |       |                                |      \-------+-------------+--------------------+++--+---+---------------+------+----/                
+     |       |                                |              |             \--------------------/|\--+---+---------------+------/                     
+     |       v                                \--------------+-----------------------------------+---+---+---------------/                            
+     \-------+-----------------------------------------------+-----------------------------------+---/   |                                            
+             |                                               \-----------------------------------+-------/                                            
+             \--------------------------------------------------------------------------------<--/                                                    
diff --git a/day13.rb b/day13.rb
new file mode 100644
index 0000000..9b2003c
--- /dev/null
+++ b/day13.rb
@@ -0,0 +1,137 @@
+maze = File.readlines("day13")
+
+xmaze = <<'EOF'.lines.to_a
+/->-\        
+|   |  /----\
+| /-+--+-\  |
+| | |  | v  |
+\-+-/  \-+--/
+  \------/   
+EOF
+
+cars = []
+
+maze.each_with_index { |row, i|
+  row.chars.each_with_index { |col, j|
+    case col
+    when "^"; cars << [i,j,:n,:l]; row[j] = "|"
+    when ">"; cars << [i,j,:e,:l]; row[j] = "-"
+    when "v"; cars << [i,j,:s,:l]; row[j] = "|"
+    when "<"; cars << [i,j,:w,:l]; row[j] = "-"
+    end
+  }
+}
+
+
+cars = [
+  [65, 26, :s, :r],
+  [105, 39, :n, :l],
+  [140, 85, :e, :r]
+]
+
+puts maze
+
+crashed = []
+
+loop {
+  cars.sort! #_by! { |(i,j,d,s)| [j,i] }
+
+  p cars.size
+  p cars
+
+  m = maze.map {|l|l.dup}
+  cars.each { |(i,j,d,s)|
+    m[i][j] = case d
+              when :e; ">"
+              when :n; "^"
+              when :s; "v"
+              when :w; "<"
+              end
+  }
+#  puts m
+
+  if cars.size == 1
+    p cars
+    break
+  end
+
+  cars.each_with_index { |(i,j,d,s),n|
+    p [maze[i][j],d]
+    case [maze[i][j],d]
+    when ["-", :e]
+      cars[n][1] += 1
+    when ["-", :w]
+      cars[n][1] -= 1
+    when ["|", :s]
+      cars[n][0] += 1
+    when ["|", :n]
+      cars[n][0] -= 1
+    when ["+", :s]
+      case s
+      when :l; cars[n][1] +=1; cars[n][2] = :e; cars[n][3] = :s
+      when :s; cars[n][0] +=1; cars[n][3] = :r
+      when :r; cars[n][1] -=1; cars[n][2] = :w; cars[n][3] = :l
+      end
+    when ["+", :n]
+      case s
+      when :l; cars[n][1] -=1; cars[n][2] = :w; cars[n][3] = :s
+      when :s; cars[n][0] -=1; cars[n][3] = :r
+      when :r; cars[n][1] +=1; cars[n][2] = :e; cars[n][3] = :l
+      end
+    when ["+", :e]
+      case s
+      when :l; cars[n][0] -=1; cars[n][2] = :n; cars[n][3] = :s
+      when :s; cars[n][1] +=1; cars[n][3] = :r
+      when :r; cars[n][0] +=1; cars[n][2] = :s; cars[n][3] = :l
+      end
+    when ["+", :w]
+      case s
+      when :l; cars[n][0] +=1; cars[n][2] = :s; cars[n][3] = :s
+      when :s; cars[n][1] -=1; cars[n][3] = :r
+      when :r; cars[n][0] -=1; cars[n][2] = :n; cars[n][3] = :l
+      end
+    when ["\\", :e]
+      cars[n][2] = :s
+      cars[n][0] += 1
+    when ["/", :e]
+      cars[n][2] = :n
+      cars[n][0] -= 1
+    when ["\\", :n]
+      cars[n][2] = :w
+      cars[n][1] -= 1
+    when ["/", :n]
+      cars[n][2] = :e
+      cars[n][1] += 1
+    when ["\\", :s]
+      cars[n][2] = :e
+      cars[n][1] += 1
+    when ["/", :s]
+      cars[n][2] = :w
+      cars[n][1] -= 1
+    when ["/", :w]
+      cars[n][2] = :s
+      cars[n][0] += 1
+    when ["\\", :w]
+      cars[n][2] = :n
+      cars[n][0] -= 1
+    else
+      p [:miss, maze[i][j], d]
+    end
+
+    if cars.each.with_index.any? { |(i2,j2,_,_,m)| i == i2 && j == j2 && n != m }
+      if crashed.empty?
+        p [:crash, j, i]
+      end
+      crashed << true
+      cars.delete_at n
+      cars.delete_if { |(i2,j2,_,_,m)| i == i2 && j == j2 }
+    end
+
+  }
+}
+
+p cars
+
+# 32,8 ok
+# 38,38
+
diff --git a/day14 b/day14
new file mode 100644
index 0000000..bb84d0a
--- /dev/null
+++ b/day14
@@ -0,0 +1 @@
+360781
diff --git a/day14.rb b/day14.rb
new file mode 100644
index 0000000..c290b18
--- /dev/null
+++ b/day14.rb
@@ -0,0 +1,25 @@
+d = 360781
+
+s = [3,7]
+e1 = 0
+e2 = 1
+
+30_000_000.times {
+#  p [:X, e1, e2, s[e1], s[e2]]
+  c = (s[e1] + s[e2]).to_s.split('').map(&:to_i)
+  s.concat c
+  e1 = (e1 + 1 + s[e1]) % s.size
+  e2 = (e2 + 1 + s[e2]) % s.size
+
+#  p s
+
+#  p s.size-6  if  s[-7]==3&&s[-6]==6&&s[-5]==0&&s[-4]==7&&s[-3]==9&&s[-2]==1
+#  p s.size-6  if  s[-6]==3&&s[-5]==6&&s[-4]==0&&s[-3]==7&&s[-2]==9&&s[-1]==1
+}
+
+p s.size
+p s[d,10].join('')
+# 6521571010
+
+p s.join('').index d.to_s
+# 20262967
diff --git a/day15.rb b/day15.rb
new file mode 100644
index 0000000..4df8590
--- /dev/null
+++ b/day15.rb
@@ -0,0 +1,32 @@
+################################
+#####################....#######
+#####################....#######
+####################.....#######
+#########...G#######......######
+#########....#....#.........#..#
+######.#...G####.G......#..E...#
+######.##..##.#.......###....###
+####............#.##..###.....##
+####.G.##....G....###.####...###
+####.GGG##........###.#####..###
+#####...##...G.................#
+######.###..G.#####.........####
+######..##...#######........####
+######...GG.#########....E...###
+######.....G#########.E.E......#
+######......#########..........#
+#########.#.#########....#....##
+#########G#.#########.....######
+###.#####G...#######......######
+#..G..##...E..#####........#####
+#..##.##.................E.#####
+#..G.......................#####
+###..G......G..E............####
+###...##.G......#...##......####
+########..E....##.#######..#####
+#######........#################
+#######........#################
+########.##......###############
+######...##..E.E.###############
+######.....##.#.################
+################################
diff --git a/day16 b/day16
new file mode 100644
index 0000000..a768055
--- /dev/null
+++ b/day16
@@ -0,0 +1,4014 @@
+Before: [0, 2, 2, 2]
+4 2 3 2
+After:  [0, 2, 5, 2]
+
+Before: [2, 2, 1, 3]
+3 1 0 2
+After:  [2, 2, 1, 3]
+
+Before: [0, 2, 0, 0]
+8 1 2 0
+After:  [4, 2, 0, 0]
+
+Before: [2, 2, 2, 0]
+2 1 2 2
+After:  [2, 2, 1, 0]
+
+Before: [3, 1, 2, 2]
+11 1 0 3
+After:  [3, 1, 2, 3]
+
+Before: [1, 1, 2, 3]
+12 0 3 0
+After:  [0, 1, 2, 3]
+
+Before: [3, 1, 2, 2]
+15 0 3 3
+After:  [3, 1, 2, 6]
+
+Before: [1, 2, 2, 2]
+6 1 0 1
+After:  [1, 1, 2, 2]
+
+Before: [0, 1, 3, 1]
+5 1 0 2
+After:  [0, 1, 1, 1]
+
+Before: [2, 2, 1, 0]
+3 1 0 1
+After:  [2, 1, 1, 0]
+
+Before: [3, 3, 1, 2]
+6 3 3 1
+After:  [3, 0, 1, 2]
+
+Before: [2, 2, 3, 0]
+3 1 1 0
+After:  [1, 2, 3, 0]
+
+Before: [0, 2, 2, 1]
+15 3 1 0
+After:  [2, 2, 2, 1]
+
+Before: [0, 1, 3, 1]
+5 1 0 0
+After:  [1, 1, 3, 1]
+
+Before: [0, 1, 0, 3]
+5 1 0 0
+After:  [1, 1, 0, 3]
+
+Before: [3, 2, 2, 3]
+7 1 0 3
+After:  [3, 2, 2, 1]
+
+Before: [0, 2, 3, 0]
+10 0 0 1
+After:  [0, 0, 3, 0]
+
+Before: [0, 1, 1, 0]
+4 2 3 0
+After:  [4, 1, 1, 0]
+
+Before: [2, 1, 2, 3]
+14 0 2 1
+After:  [2, 4, 2, 3]
+
+Before: [2, 1, 3, 2]
+1 3 1 2
+After:  [2, 1, 3, 2]
+
+Before: [2, 2, 2, 1]
+1 3 2 0
+After:  [3, 2, 2, 1]
+
+Before: [0, 0, 3, 1]
+10 0 0 0
+After:  [0, 0, 3, 1]
+
+Before: [0, 2, 2, 3]
+2 1 2 3
+After:  [0, 2, 2, 1]
+
+Before: [2, 1, 0, 3]
+12 0 3 2
+After:  [2, 1, 0, 3]
+
+Before: [3, 0, 3, 3]
+4 2 2 1
+After:  [3, 5, 3, 3]
+
+Before: [0, 3, 3, 1]
+3 1 2 0
+After:  [1, 3, 3, 1]
+
+Before: [2, 0, 0, 3]
+12 0 3 1
+After:  [2, 0, 0, 3]
+
+Before: [2, 0, 3, 2]
+4 2 2 2
+After:  [2, 0, 5, 2]
+
+Before: [1, 3, 3, 0]
+3 1 2 1
+After:  [1, 1, 3, 0]
+
+Before: [1, 1, 2, 2]
+4 0 3 0
+After:  [4, 1, 2, 2]
+
+Before: [1, 2, 2, 3]
+15 0 1 3
+After:  [1, 2, 2, 2]
+
+Before: [3, 2, 3, 0]
+7 1 0 3
+After:  [3, 2, 3, 1]
+
+Before: [0, 1, 2, 0]
+10 0 0 2
+After:  [0, 1, 0, 0]
+
+Before: [0, 3, 2, 1]
+10 0 0 0
+After:  [0, 3, 2, 1]
+
+Before: [2, 1, 3, 2]
+9 1 3 0
+After:  [3, 1, 3, 2]
+
+Before: [1, 1, 3, 0]
+13 1 0 2
+After:  [1, 1, 1, 0]
+
+Before: [3, 1, 2, 2]
+6 3 3 2
+After:  [3, 1, 0, 2]
+
+Before: [3, 1, 3, 2]
+15 2 3 2
+After:  [3, 1, 6, 2]
+
+Before: [3, 2, 2, 2]
+7 1 0 1
+After:  [3, 1, 2, 2]
+
+Before: [1, 1, 0, 2]
+13 1 0 2
+After:  [1, 1, 1, 2]
+
+Before: [1, 1, 2, 3]
+13 1 0 0
+After:  [1, 1, 2, 3]
+
+Before: [1, 1, 2, 1]
+9 2 1 2
+After:  [1, 1, 3, 1]
+
+Before: [1, 2, 2, 2]
+2 1 2 1
+After:  [1, 1, 2, 2]
+
+Before: [1, 0, 1, 2]
+0 1 0 3
+After:  [1, 0, 1, 1]
+
+Before: [1, 2, 2, 2]
+6 3 3 0
+After:  [0, 2, 2, 2]
+
+Before: [2, 2, 2, 2]
+3 1 1 1
+After:  [2, 1, 2, 2]
+
+Before: [1, 3, 0, 3]
+9 0 3 0
+After:  [3, 3, 0, 3]
+
+Before: [0, 2, 2, 1]
+2 1 2 1
+After:  [0, 1, 2, 1]
+
+Before: [3, 2, 1, 0]
+7 1 0 0
+After:  [1, 2, 1, 0]
+
+Before: [2, 0, 3, 1]
+6 3 3 0
+After:  [0, 0, 3, 1]
+
+Before: [2, 2, 2, 2]
+6 3 3 1
+After:  [2, 0, 2, 2]
+
+Before: [1, 1, 2, 0]
+13 1 0 1
+After:  [1, 1, 2, 0]
+
+Before: [3, 3, 1, 3]
+11 2 0 2
+After:  [3, 3, 3, 3]
+
+Before: [2, 2, 3, 0]
+3 1 0 2
+After:  [2, 2, 1, 0]
+
+Before: [1, 2, 0, 3]
+12 0 3 2
+After:  [1, 2, 0, 3]
+
+Before: [0, 2, 3, 1]
+10 0 0 0
+After:  [0, 2, 3, 1]
+
+Before: [1, 0, 2, 2]
+0 1 0 3
+After:  [1, 0, 2, 1]
+
+Before: [1, 0, 1, 0]
+0 1 0 3
+After:  [1, 0, 1, 1]
+
+Before: [0, 1, 1, 2]
+5 1 0 3
+After:  [0, 1, 1, 1]
+
+Before: [0, 3, 0, 2]
+11 0 3 2
+After:  [0, 3, 2, 2]
+
+Before: [3, 2, 3, 2]
+15 2 3 1
+After:  [3, 6, 3, 2]
+
+Before: [1, 1, 2, 3]
+13 1 0 1
+After:  [1, 1, 2, 3]
+
+Before: [3, 1, 0, 1]
+11 1 0 2
+After:  [3, 1, 3, 1]
+
+Before: [1, 1, 0, 0]
+13 1 0 0
+After:  [1, 1, 0, 0]
+
+Before: [0, 2, 2, 1]
+2 1 2 3
+After:  [0, 2, 2, 1]
+
+Before: [3, 1, 2, 1]
+1 3 2 3
+After:  [3, 1, 2, 3]
+
+Before: [3, 3, 3, 2]
+6 3 3 3
+After:  [3, 3, 3, 0]
+
+Before: [1, 0, 3, 2]
+11 1 2 0
+After:  [3, 0, 3, 2]
+
+Before: [1, 0, 1, 2]
+0 1 0 1
+After:  [1, 1, 1, 2]
+
+Before: [1, 3, 0, 3]
+9 0 3 2
+After:  [1, 3, 3, 3]
+
+Before: [3, 3, 3, 3]
+3 1 2 0
+After:  [1, 3, 3, 3]
+
+Before: [3, 2, 1, 1]
+7 1 0 3
+After:  [3, 2, 1, 1]
+
+Before: [3, 2, 2, 3]
+7 1 0 0
+After:  [1, 2, 2, 3]
+
+Before: [3, 1, 2, 0]
+14 2 2 2
+After:  [3, 1, 4, 0]
+
+Before: [0, 0, 1, 2]
+10 0 0 0
+After:  [0, 0, 1, 2]
+
+Before: [2, 3, 2, 3]
+2 1 3 3
+After:  [2, 3, 2, 1]
+
+Before: [3, 2, 3, 1]
+4 0 3 2
+After:  [3, 2, 6, 1]
+
+Before: [2, 1, 0, 2]
+6 3 3 3
+After:  [2, 1, 0, 0]
+
+Before: [3, 2, 0, 2]
+7 1 0 0
+After:  [1, 2, 0, 2]
+
+Before: [1, 0, 0, 1]
+0 1 0 2
+After:  [1, 0, 1, 1]
+
+Before: [1, 1, 0, 0]
+4 0 3 2
+After:  [1, 1, 4, 0]
+
+Before: [2, 2, 2, 3]
+8 2 3 1
+After:  [2, 6, 2, 3]
+
+Before: [1, 0, 2, 2]
+0 1 0 0
+After:  [1, 0, 2, 2]
+
+Before: [0, 2, 1, 0]
+10 0 0 1
+After:  [0, 0, 1, 0]
+
+Before: [0, 3, 2, 3]
+14 2 2 3
+After:  [0, 3, 2, 4]
+
+Before: [1, 3, 0, 3]
+12 0 3 3
+After:  [1, 3, 0, 0]
+
+Before: [3, 2, 3, 3]
+7 1 0 0
+After:  [1, 2, 3, 3]
+
+Before: [1, 1, 1, 3]
+9 2 3 2
+After:  [1, 1, 3, 3]
+
+Before: [3, 2, 0, 1]
+7 1 0 3
+After:  [3, 2, 0, 1]
+
+Before: [0, 2, 1, 3]
+11 2 1 1
+After:  [0, 3, 1, 3]
+
+Before: [0, 0, 0, 1]
+4 3 1 3
+After:  [0, 0, 0, 2]
+
+Before: [1, 1, 0, 2]
+1 3 1 3
+After:  [1, 1, 0, 3]
+
+Before: [0, 1, 2, 1]
+5 1 0 2
+After:  [0, 1, 1, 1]
+
+Before: [0, 2, 1, 0]
+4 1 3 1
+After:  [0, 5, 1, 0]
+
+Before: [3, 3, 0, 3]
+2 1 3 1
+After:  [3, 1, 0, 3]
+
+Before: [1, 0, 2, 1]
+0 1 0 0
+After:  [1, 0, 2, 1]
+
+Before: [1, 1, 2, 1]
+13 1 0 1
+After:  [1, 1, 2, 1]
+
+Before: [0, 3, 2, 1]
+4 1 1 2
+After:  [0, 3, 4, 1]
+
+Before: [0, 3, 0, 3]
+9 2 3 2
+After:  [0, 3, 3, 3]
+
+Before: [2, 2, 0, 3]
+8 1 2 2
+After:  [2, 2, 4, 3]
+
+Before: [2, 2, 0, 0]
+3 1 1 2
+After:  [2, 2, 1, 0]
+
+Before: [0, 1, 2, 3]
+5 1 0 1
+After:  [0, 1, 2, 3]
+
+Before: [1, 1, 1, 1]
+13 1 0 3
+After:  [1, 1, 1, 1]
+
+Before: [3, 1, 3, 1]
+6 3 3 2
+After:  [3, 1, 0, 1]
+
+Before: [0, 2, 0, 2]
+6 3 3 2
+After:  [0, 2, 0, 2]
+
+Before: [0, 3, 0, 2]
+10 0 0 0
+After:  [0, 3, 0, 2]
+
+Before: [2, 3, 2, 3]
+14 2 2 0
+After:  [4, 3, 2, 3]
+
+Before: [1, 2, 1, 0]
+3 1 1 0
+After:  [1, 2, 1, 0]
+
+Before: [2, 0, 1, 1]
+11 0 2 3
+After:  [2, 0, 1, 3]
+
+Before: [2, 2, 1, 3]
+12 0 3 2
+After:  [2, 2, 0, 3]
+
+Before: [0, 2, 0, 3]
+8 1 2 3
+After:  [0, 2, 0, 4]
+
+Before: [2, 1, 3, 2]
+8 3 2 0
+After:  [4, 1, 3, 2]
+
+Before: [1, 0, 0, 2]
+0 1 0 1
+After:  [1, 1, 0, 2]
+
+Before: [1, 1, 1, 0]
+13 1 0 2
+After:  [1, 1, 1, 0]
+
+Before: [3, 1, 2, 2]
+14 2 2 3
+After:  [3, 1, 2, 4]
+
+Before: [1, 2, 2, 1]
+14 1 2 2
+After:  [1, 2, 4, 1]
+
+Before: [3, 3, 2, 3]
+2 1 3 0
+After:  [1, 3, 2, 3]
+
+Before: [3, 2, 2, 0]
+11 3 1 3
+After:  [3, 2, 2, 2]
+
+Before: [2, 2, 0, 2]
+3 1 1 0
+After:  [1, 2, 0, 2]
+
+Before: [1, 3, 3, 2]
+4 2 1 3
+After:  [1, 3, 3, 4]
+
+Before: [1, 3, 2, 3]
+2 1 3 1
+After:  [1, 1, 2, 3]
+
+Before: [1, 0, 3, 1]
+0 1 0 3
+After:  [1, 0, 3, 1]
+
+Before: [1, 0, 1, 3]
+0 1 0 0
+After:  [1, 0, 1, 3]
+
+Before: [3, 2, 0, 1]
+7 1 0 0
+After:  [1, 2, 0, 1]
+
+Before: [3, 2, 1, 2]
+7 1 0 0
+After:  [1, 2, 1, 2]
+
+Before: [0, 2, 2, 2]
+2 1 2 1
+After:  [0, 1, 2, 2]
+
+Before: [0, 1, 2, 3]
+5 1 0 2
+After:  [0, 1, 1, 3]
+
+Before: [1, 0, 2, 3]
+0 1 0 1
+After:  [1, 1, 2, 3]
+
+Before: [0, 1, 0, 2]
+5 1 0 3
+After:  [0, 1, 0, 1]
+
+Before: [2, 1, 3, 3]
+11 1 0 3
+After:  [2, 1, 3, 3]
+
+Before: [1, 3, 1, 1]
+6 3 3 1
+After:  [1, 0, 1, 1]
+
+Before: [3, 0, 3, 1]
+1 3 2 3
+After:  [3, 0, 3, 3]
+
+Before: [1, 2, 3, 0]
+9 0 2 2
+After:  [1, 2, 3, 0]
+
+Before: [2, 2, 2, 0]
+11 3 0 1
+After:  [2, 2, 2, 0]
+
+Before: [2, 2, 2, 1]
+14 0 2 3
+After:  [2, 2, 2, 4]
+
+Before: [3, 2, 0, 2]
+7 1 0 3
+After:  [3, 2, 0, 1]
+
+Before: [0, 2, 1, 3]
+9 2 3 2
+After:  [0, 2, 3, 3]
+
+Before: [1, 1, 2, 2]
+9 0 3 2
+After:  [1, 1, 3, 2]
+
+Before: [2, 1, 3, 3]
+12 0 3 2
+After:  [2, 1, 0, 3]
+
+Before: [0, 2, 2, 0]
+14 1 2 3
+After:  [0, 2, 2, 4]
+
+Before: [2, 2, 0, 3]
+12 0 3 2
+After:  [2, 2, 0, 3]
+
+Before: [0, 0, 3, 2]
+15 2 3 1
+After:  [0, 6, 3, 2]
+
+Before: [0, 3, 0, 1]
+4 1 3 0
+After:  [6, 3, 0, 1]
+
+Before: [2, 2, 2, 3]
+12 0 3 0
+After:  [0, 2, 2, 3]
+
+Before: [0, 1, 1, 0]
+5 1 0 1
+After:  [0, 1, 1, 0]
+
+Before: [0, 3, 1, 3]
+2 1 3 3
+After:  [0, 3, 1, 1]
+
+Before: [1, 1, 2, 0]
+14 2 2 2
+After:  [1, 1, 4, 0]
+
+Before: [0, 0, 2, 1]
+10 0 0 3
+After:  [0, 0, 2, 0]
+
+Before: [3, 3, 3, 1]
+3 1 2 0
+After:  [1, 3, 3, 1]
+
+Before: [3, 2, 1, 1]
+11 1 2 3
+After:  [3, 2, 1, 3]
+
+Before: [2, 2, 1, 1]
+6 1 2 2
+After:  [2, 2, 1, 1]
+
+Before: [0, 0, 1, 0]
+10 0 0 2
+After:  [0, 0, 0, 0]
+
+Before: [3, 3, 3, 3]
+3 1 0 0
+After:  [1, 3, 3, 3]
+
+Before: [3, 0, 2, 1]
+1 3 2 2
+After:  [3, 0, 3, 1]
+
+Before: [1, 1, 2, 3]
+13 1 0 2
+After:  [1, 1, 1, 3]
+
+Before: [2, 1, 1, 1]
+6 2 3 0
+After:  [0, 1, 1, 1]
+
+Before: [1, 1, 2, 2]
+1 3 1 3
+After:  [1, 1, 2, 3]
+
+Before: [1, 2, 3, 3]
+15 0 1 0
+After:  [2, 2, 3, 3]
+
+Before: [0, 1, 2, 2]
+5 1 0 3
+After:  [0, 1, 2, 1]
+
+Before: [1, 2, 0, 3]
+12 0 3 3
+After:  [1, 2, 0, 0]
+
+Before: [1, 0, 3, 1]
+6 3 3 1
+After:  [1, 0, 3, 1]
+
+Before: [3, 0, 1, 2]
+15 0 3 2
+After:  [3, 0, 6, 2]
+
+Before: [3, 3, 2, 0]
+8 1 2 2
+After:  [3, 3, 6, 0]
+
+Before: [0, 1, 1, 2]
+1 3 1 1
+After:  [0, 3, 1, 2]
+
+Before: [2, 1, 3, 3]
+9 0 1 1
+After:  [2, 3, 3, 3]
+
+Before: [2, 3, 2, 3]
+12 0 3 3
+After:  [2, 3, 2, 0]
+
+Before: [2, 1, 0, 3]
+9 1 3 2
+After:  [2, 1, 3, 3]
+
+Before: [3, 0, 2, 1]
+9 1 2 2
+After:  [3, 0, 2, 1]
+
+Before: [2, 0, 1, 3]
+8 0 3 0
+After:  [6, 0, 1, 3]
+
+Before: [1, 0, 2, 1]
+0 1 0 1
+After:  [1, 1, 2, 1]
+
+Before: [2, 1, 2, 3]
+8 2 3 3
+After:  [2, 1, 2, 6]
+
+Before: [1, 0, 3, 3]
+12 0 3 3
+After:  [1, 0, 3, 0]
+
+Before: [0, 3, 3, 0]
+4 2 2 2
+After:  [0, 3, 5, 0]
+
+Before: [0, 3, 3, 3]
+10 0 0 3
+After:  [0, 3, 3, 0]
+
+Before: [3, 2, 2, 2]
+14 2 2 2
+After:  [3, 2, 4, 2]
+
+Before: [0, 3, 1, 3]
+8 3 3 3
+After:  [0, 3, 1, 9]
+
+Before: [0, 2, 0, 1]
+3 1 1 3
+After:  [0, 2, 0, 1]
+
+Before: [0, 2, 2, 1]
+14 2 2 0
+After:  [4, 2, 2, 1]
+
+Before: [1, 3, 0, 3]
+2 1 3 1
+After:  [1, 1, 0, 3]
+
+Before: [2, 3, 2, 3]
+2 1 3 2
+After:  [2, 3, 1, 3]
+
+Before: [3, 2, 2, 1]
+7 1 0 2
+After:  [3, 2, 1, 1]
+
+Before: [1, 3, 1, 3]
+12 0 3 0
+After:  [0, 3, 1, 3]
+
+Before: [1, 1, 2, 3]
+8 1 2 1
+After:  [1, 2, 2, 3]
+
+Before: [1, 2, 3, 0]
+15 0 1 0
+After:  [2, 2, 3, 0]
+
+Before: [1, 0, 0, 2]
+0 1 0 2
+After:  [1, 0, 1, 2]
+
+Before: [0, 2, 2, 3]
+3 1 1 0
+After:  [1, 2, 2, 3]
+
+Before: [3, 2, 2, 0]
+3 1 1 0
+After:  [1, 2, 2, 0]
+
+Before: [1, 3, 2, 1]
+1 3 2 0
+After:  [3, 3, 2, 1]
+
+Before: [1, 1, 3, 0]
+13 1 0 1
+After:  [1, 1, 3, 0]
+
+Before: [1, 1, 2, 1]
+13 1 0 3
+After:  [1, 1, 2, 1]
+
+Before: [1, 0, 1, 1]
+0 1 0 0
+After:  [1, 0, 1, 1]
+
+Before: [2, 3, 3, 2]
+4 2 2 3
+After:  [2, 3, 3, 5]
+
+Before: [3, 2, 1, 2]
+7 1 0 3
+After:  [3, 2, 1, 1]
+
+Before: [1, 0, 3, 2]
+0 1 0 0
+After:  [1, 0, 3, 2]
+
+Before: [0, 2, 0, 3]
+10 0 0 1
+After:  [0, 0, 0, 3]
+
+Before: [3, 1, 2, 3]
+9 1 3 0
+After:  [3, 1, 2, 3]
+
+Before: [0, 0, 3, 1]
+1 3 2 0
+After:  [3, 0, 3, 1]
+
+Before: [0, 3, 2, 1]
+1 3 2 1
+After:  [0, 3, 2, 1]
+
+Before: [3, 2, 3, 1]
+15 3 1 3
+After:  [3, 2, 3, 2]
+
+Before: [3, 2, 1, 1]
+15 3 1 3
+After:  [3, 2, 1, 2]
+
+Before: [2, 0, 0, 3]
+12 0 3 0
+After:  [0, 0, 0, 3]
+
+Before: [2, 2, 1, 2]
+4 2 3 3
+After:  [2, 2, 1, 4]
+
+Before: [0, 1, 2, 3]
+8 3 3 2
+After:  [0, 1, 9, 3]
+
+Before: [1, 2, 2, 3]
+12 0 3 3
+After:  [1, 2, 2, 0]
+
+Before: [2, 2, 0, 3]
+8 1 2 3
+After:  [2, 2, 0, 4]
+
+Before: [1, 0, 0, 3]
+0 1 0 2
+After:  [1, 0, 1, 3]
+
+Before: [0, 2, 0, 2]
+10 0 0 2
+After:  [0, 2, 0, 2]
+
+Before: [2, 2, 3, 2]
+3 1 0 0
+After:  [1, 2, 3, 2]
+
+Before: [2, 0, 0, 3]
+12 0 3 2
+After:  [2, 0, 0, 3]
+
+Before: [2, 0, 2, 3]
+8 2 3 3
+After:  [2, 0, 2, 6]
+
+Before: [1, 0, 2, 1]
+0 1 0 2
+After:  [1, 0, 1, 1]
+
+Before: [1, 2, 2, 3]
+14 1 2 3
+After:  [1, 2, 2, 4]
+
+Before: [0, 3, 1, 3]
+11 0 1 2
+After:  [0, 3, 3, 3]
+
+Before: [1, 0, 3, 2]
+15 2 3 0
+After:  [6, 0, 3, 2]
+
+Before: [0, 1, 1, 1]
+5 1 0 3
+After:  [0, 1, 1, 1]
+
+Before: [0, 1, 3, 2]
+5 1 0 1
+After:  [0, 1, 3, 2]
+
+Before: [3, 2, 1, 2]
+8 1 2 3
+After:  [3, 2, 1, 4]
+
+Before: [2, 1, 2, 3]
+12 0 3 3
+After:  [2, 1, 2, 0]
+
+Before: [0, 1, 0, 0]
+5 1 0 2
+After:  [0, 1, 1, 0]
+
+Before: [1, 1, 2, 1]
+4 0 3 2
+After:  [1, 1, 4, 1]
+
+Before: [1, 0, 3, 1]
+4 2 2 1
+After:  [1, 5, 3, 1]
+
+Before: [1, 1, 3, 1]
+13 1 0 1
+After:  [1, 1, 3, 1]
+
+Before: [3, 2, 3, 1]
+7 1 0 3
+After:  [3, 2, 3, 1]
+
+Before: [1, 1, 0, 2]
+13 1 0 1
+After:  [1, 1, 0, 2]
+
+Before: [3, 2, 0, 3]
+7 1 0 3
+After:  [3, 2, 0, 1]
+
+Before: [3, 2, 2, 1]
+15 3 1 2
+After:  [3, 2, 2, 1]
+
+Before: [0, 3, 0, 2]
+15 1 3 1
+After:  [0, 6, 0, 2]
+
+Before: [3, 2, 0, 3]
+7 1 0 0
+After:  [1, 2, 0, 3]
+
+Before: [3, 2, 0, 2]
+7 1 0 1
+After:  [3, 1, 0, 2]
+
+Before: [0, 2, 2, 3]
+9 0 3 1
+After:  [0, 3, 2, 3]
+
+Before: [0, 2, 2, 1]
+11 0 3 1
+After:  [0, 1, 2, 1]
+
+Before: [2, 2, 1, 0]
+3 1 1 1
+After:  [2, 1, 1, 0]
+
+Before: [2, 3, 3, 2]
+15 2 3 1
+After:  [2, 6, 3, 2]
+
+Before: [0, 2, 3, 2]
+10 0 0 0
+After:  [0, 2, 3, 2]
+
+Before: [1, 0, 2, 2]
+9 0 3 2
+After:  [1, 0, 3, 2]
+
+Before: [2, 1, 1, 3]
+8 3 3 0
+After:  [9, 1, 1, 3]
+
+Before: [1, 2, 3, 3]
+9 0 2 0
+After:  [3, 2, 3, 3]
+
+Before: [1, 2, 2, 1]
+2 1 2 3
+After:  [1, 2, 2, 1]
+
+Before: [1, 2, 0, 2]
+15 0 1 1
+After:  [1, 2, 0, 2]
+
+Before: [0, 2, 3, 0]
+10 0 0 3
+After:  [0, 2, 3, 0]
+
+Before: [2, 2, 0, 2]
+3 1 1 2
+After:  [2, 2, 1, 2]
+
+Before: [3, 2, 2, 2]
+14 2 2 0
+After:  [4, 2, 2, 2]
+
+Before: [0, 0, 3, 2]
+15 2 3 0
+After:  [6, 0, 3, 2]
+
+Before: [0, 3, 0, 3]
+10 0 0 0
+After:  [0, 3, 0, 3]
+
+Before: [0, 1, 1, 2]
+6 3 3 3
+After:  [0, 1, 1, 0]
+
+Before: [1, 2, 0, 3]
+11 0 1 3
+After:  [1, 2, 0, 3]
+
+Before: [0, 2, 1, 0]
+6 1 2 3
+After:  [0, 2, 1, 1]
+
+Before: [1, 0, 0, 0]
+0 1 0 1
+After:  [1, 1, 0, 0]
+
+Before: [3, 3, 1, 1]
+6 3 3 2
+After:  [3, 3, 0, 1]
+
+Before: [0, 1, 3, 3]
+9 0 1 1
+After:  [0, 1, 3, 3]
+
+Before: [1, 0, 1, 1]
+0 1 0 1
+After:  [1, 1, 1, 1]
+
+Before: [1, 1, 2, 0]
+13 1 0 0
+After:  [1, 1, 2, 0]
+
+Before: [2, 2, 2, 2]
+14 2 2 1
+After:  [2, 4, 2, 2]
+
+Before: [0, 1, 1, 3]
+10 0 0 2
+After:  [0, 1, 0, 3]
+
+Before: [0, 2, 1, 1]
+10 0 0 3
+After:  [0, 2, 1, 0]
+
+Before: [3, 3, 0, 3]
+2 1 3 2
+After:  [3, 3, 1, 3]
+
+Before: [0, 1, 3, 3]
+10 0 0 0
+After:  [0, 1, 3, 3]
+
+Before: [1, 0, 3, 3]
+0 1 0 2
+After:  [1, 0, 1, 3]
+
+Before: [0, 2, 3, 3]
+10 0 0 1
+After:  [0, 0, 3, 3]
+
+Before: [2, 3, 1, 2]
+11 2 1 3
+After:  [2, 3, 1, 3]
+
+Before: [3, 3, 3, 2]
+4 0 1 2
+After:  [3, 3, 4, 2]
+
+Before: [0, 0, 2, 0]
+9 0 2 1
+After:  [0, 2, 2, 0]
+
+Before: [1, 0, 1, 3]
+0 1 0 2
+After:  [1, 0, 1, 3]
+
+Before: [1, 2, 0, 1]
+15 3 1 0
+After:  [2, 2, 0, 1]
+
+Before: [1, 3, 3, 3]
+12 0 3 2
+After:  [1, 3, 0, 3]
+
+Before: [3, 3, 0, 3]
+2 1 3 3
+After:  [3, 3, 0, 1]
+
+Before: [0, 3, 1, 2]
+11 0 1 1
+After:  [0, 3, 1, 2]
+
+Before: [2, 0, 1, 0]
+11 0 2 3
+After:  [2, 0, 1, 3]
+
+Before: [2, 2, 2, 3]
+2 1 2 0
+After:  [1, 2, 2, 3]
+
+Before: [2, 0, 3, 1]
+1 3 2 1
+After:  [2, 3, 3, 1]
+
+Before: [0, 0, 3, 1]
+10 0 0 2
+After:  [0, 0, 0, 1]
+
+Before: [3, 2, 0, 0]
+7 1 0 1
+After:  [3, 1, 0, 0]
+
+Before: [1, 1, 0, 3]
+13 1 0 3
+After:  [1, 1, 0, 1]
+
+Before: [1, 2, 1, 3]
+12 0 3 0
+After:  [0, 2, 1, 3]
+
+Before: [1, 0, 2, 2]
+14 3 2 0
+After:  [4, 0, 2, 2]
+
+Before: [2, 2, 2, 1]
+14 2 2 0
+After:  [4, 2, 2, 1]
+
+Before: [2, 3, 1, 3]
+11 2 0 2
+After:  [2, 3, 3, 3]
+
+Before: [0, 1, 3, 3]
+5 1 0 2
+After:  [0, 1, 1, 3]
+
+Before: [3, 3, 3, 3]
+2 1 3 3
+After:  [3, 3, 3, 1]
+
+Before: [1, 1, 2, 2]
+13 1 0 1
+After:  [1, 1, 2, 2]
+
+Before: [0, 1, 2, 2]
+5 1 0 1
+After:  [0, 1, 2, 2]
+
+Before: [1, 0, 1, 1]
+4 2 3 3
+After:  [1, 0, 1, 4]
+
+Before: [2, 2, 1, 1]
+15 3 1 1
+After:  [2, 2, 1, 1]
+
+Before: [1, 3, 0, 1]
+11 0 1 3
+After:  [1, 3, 0, 3]
+
+Before: [3, 3, 2, 3]
+8 2 3 3
+After:  [3, 3, 2, 6]
+
+Before: [3, 1, 1, 1]
+6 2 3 0
+After:  [0, 1, 1, 1]
+
+Before: [0, 3, 0, 2]
+6 3 3 1
+After:  [0, 0, 0, 2]
+
+Before: [0, 2, 3, 1]
+15 3 1 0
+After:  [2, 2, 3, 1]
+
+Before: [1, 0, 3, 3]
+12 0 3 2
+After:  [1, 0, 0, 3]
+
+Before: [0, 1, 3, 1]
+1 3 2 3
+After:  [0, 1, 3, 3]
+
+Before: [2, 1, 2, 2]
+9 1 2 3
+After:  [2, 1, 2, 3]
+
+Before: [2, 1, 2, 2]
+9 0 1 3
+After:  [2, 1, 2, 3]
+
+Before: [1, 0, 1, 2]
+0 1 0 2
+After:  [1, 0, 1, 2]
+
+Before: [1, 0, 1, 0]
+0 1 0 2
+After:  [1, 0, 1, 0]
+
+Before: [3, 2, 2, 1]
+3 1 1 3
+After:  [3, 2, 2, 1]
+
+Before: [0, 3, 2, 3]
+2 1 3 3
+After:  [0, 3, 2, 1]
+
+Before: [1, 2, 3, 3]
+6 1 0 1
+After:  [1, 1, 3, 3]
+
+Before: [2, 2, 2, 2]
+2 1 2 3
+After:  [2, 2, 2, 1]
+
+Before: [2, 2, 2, 1]
+3 1 1 2
+After:  [2, 2, 1, 1]
+
+Before: [1, 1, 0, 2]
+13 1 0 0
+After:  [1, 1, 0, 2]
+
+Before: [2, 0, 0, 3]
+12 0 3 3
+After:  [2, 0, 0, 0]
+
+Before: [1, 1, 1, 1]
+6 2 3 0
+After:  [0, 1, 1, 1]
+
+Before: [3, 2, 1, 3]
+11 2 0 0
+After:  [3, 2, 1, 3]
+
+Before: [1, 3, 1, 2]
+15 1 3 1
+After:  [1, 6, 1, 2]
+
+Before: [0, 2, 1, 0]
+3 1 1 0
+After:  [1, 2, 1, 0]
+
+Before: [1, 1, 1, 3]
+12 0 3 3
+After:  [1, 1, 1, 0]
+
+Before: [3, 2, 3, 2]
+3 1 1 2
+After:  [3, 2, 1, 2]
+
+Before: [1, 0, 2, 0]
+9 0 2 1
+After:  [1, 3, 2, 0]
+
+Before: [3, 3, 1, 2]
+8 3 2 0
+After:  [4, 3, 1, 2]
+
+Before: [1, 1, 0, 3]
+13 1 0 0
+After:  [1, 1, 0, 3]
+
+Before: [1, 1, 3, 0]
+13 1 0 0
+After:  [1, 1, 3, 0]
+
+Before: [3, 0, 2, 3]
+8 3 2 3
+After:  [3, 0, 2, 6]
+
+Before: [2, 3, 3, 2]
+15 2 3 2
+After:  [2, 3, 6, 2]
+
+Before: [1, 1, 0, 2]
+13 1 0 3
+After:  [1, 1, 0, 1]
+
+Before: [0, 1, 2, 1]
+1 3 2 2
+After:  [0, 1, 3, 1]
+
+Before: [3, 0, 2, 1]
+6 3 3 2
+After:  [3, 0, 0, 1]
+
+Before: [3, 2, 1, 0]
+7 1 0 3
+After:  [3, 2, 1, 1]
+
+Before: [3, 2, 1, 2]
+15 0 3 1
+After:  [3, 6, 1, 2]
+
+Before: [1, 2, 1, 1]
+11 1 2 1
+After:  [1, 3, 1, 1]
+
+Before: [3, 0, 2, 0]
+14 2 2 1
+After:  [3, 4, 2, 0]
+
+Before: [0, 2, 3, 1]
+1 3 2 3
+After:  [0, 2, 3, 3]
+
+Before: [3, 1, 3, 0]
+11 1 0 0
+After:  [3, 1, 3, 0]
+
+Before: [2, 3, 1, 1]
+6 2 3 1
+After:  [2, 0, 1, 1]
+
+Before: [3, 2, 0, 0]
+7 1 0 2
+After:  [3, 2, 1, 0]
+
+Before: [1, 1, 3, 1]
+13 1 0 2
+After:  [1, 1, 1, 1]
+
+Before: [0, 3, 1, 3]
+2 1 3 2
+After:  [0, 3, 1, 3]
+
+Before: [0, 1, 2, 2]
+5 1 0 2
+After:  [0, 1, 1, 2]
+
+Before: [1, 2, 3, 3]
+12 0 3 3
+After:  [1, 2, 3, 0]
+
+Before: [0, 1, 0, 1]
+6 3 3 2
+After:  [0, 1, 0, 1]
+
+Before: [2, 2, 3, 1]
+4 1 3 3
+After:  [2, 2, 3, 5]
+
+Before: [1, 2, 3, 3]
+9 0 3 2
+After:  [1, 2, 3, 3]
+
+Before: [1, 0, 0, 0]
+0 1 0 3
+After:  [1, 0, 0, 1]
+
+Before: [2, 1, 2, 1]
+4 2 3 2
+After:  [2, 1, 5, 1]
+
+Before: [0, 3, 3, 3]
+2 1 3 2
+After:  [0, 3, 1, 3]
+
+Before: [1, 0, 0, 1]
+0 1 0 1
+After:  [1, 1, 0, 1]
+
+Before: [2, 2, 3, 1]
+1 3 2 2
+After:  [2, 2, 3, 1]
+
+Before: [1, 0, 1, 0]
+0 1 0 1
+After:  [1, 1, 1, 0]
+
+Before: [2, 0, 0, 0]
+11 1 0 0
+After:  [2, 0, 0, 0]
+
+Before: [2, 0, 1, 1]
+8 0 2 1
+After:  [2, 4, 1, 1]
+
+Before: [3, 2, 2, 1]
+2 1 2 2
+After:  [3, 2, 1, 1]
+
+Before: [3, 2, 3, 2]
+7 1 0 1
+After:  [3, 1, 3, 2]
+
+Before: [3, 3, 3, 3]
+4 3 2 3
+After:  [3, 3, 3, 5]
+
+Before: [1, 2, 2, 2]
+2 1 2 3
+After:  [1, 2, 2, 1]
+
+Before: [2, 3, 0, 3]
+2 1 3 2
+After:  [2, 3, 1, 3]
+
+Before: [0, 3, 2, 1]
+11 0 3 0
+After:  [1, 3, 2, 1]
+
+Before: [1, 1, 2, 0]
+13 1 0 3
+After:  [1, 1, 2, 1]
+
+Before: [3, 2, 1, 3]
+7 1 0 0
+After:  [1, 2, 1, 3]
+
+Before: [0, 1, 3, 2]
+5 1 0 0
+After:  [1, 1, 3, 2]
+
+Before: [3, 1, 0, 0]
+11 1 0 2
+After:  [3, 1, 3, 0]
+
+Before: [2, 3, 2, 1]
+1 3 2 2
+After:  [2, 3, 3, 1]
+
+Before: [0, 1, 1, 0]
+5 1 0 3
+After:  [0, 1, 1, 1]
+
+Before: [0, 1, 2, 3]
+14 2 2 2
+After:  [0, 1, 4, 3]
+
+Before: [1, 0, 3, 2]
+0 1 0 2
+After:  [1, 0, 1, 2]
+
+Before: [3, 1, 1, 1]
+6 3 3 1
+After:  [3, 0, 1, 1]
+
+Before: [2, 0, 3, 2]
+11 1 2 1
+After:  [2, 3, 3, 2]
+
+Before: [0, 2, 2, 1]
+14 1 2 0
+After:  [4, 2, 2, 1]
+
+Before: [0, 1, 1, 2]
+10 0 0 3
+After:  [0, 1, 1, 0]
+
+Before: [0, 0, 0, 1]
+10 0 0 1
+After:  [0, 0, 0, 1]
+
+Before: [0, 1, 0, 1]
+9 0 1 3
+After:  [0, 1, 0, 1]
+
+Before: [0, 2, 0, 0]
+10 0 0 3
+After:  [0, 2, 0, 0]
+
+Before: [1, 0, 2, 0]
+11 2 0 1
+After:  [1, 3, 2, 0]
+
+Before: [1, 2, 0, 0]
+11 0 1 1
+After:  [1, 3, 0, 0]
+
+Before: [1, 1, 2, 1]
+13 1 0 0
+After:  [1, 1, 2, 1]
+
+Before: [1, 1, 3, 3]
+9 1 2 3
+After:  [1, 1, 3, 3]
+
+Before: [0, 0, 3, 2]
+10 0 0 1
+After:  [0, 0, 3, 2]
+
+Before: [1, 3, 1, 3]
+12 0 3 1
+After:  [1, 0, 1, 3]
+
+Before: [0, 3, 2, 1]
+14 2 2 1
+After:  [0, 4, 2, 1]
+
+Before: [3, 2, 3, 1]
+7 1 0 0
+After:  [1, 2, 3, 1]
+
+Before: [0, 2, 2, 0]
+3 1 1 0
+After:  [1, 2, 2, 0]
+
+Before: [1, 1, 3, 0]
+9 0 2 1
+After:  [1, 3, 3, 0]
+
+Before: [2, 0, 2, 1]
+6 3 3 0
+After:  [0, 0, 2, 1]
+
+Before: [2, 0, 2, 1]
+1 3 2 1
+After:  [2, 3, 2, 1]
+
+Before: [1, 2, 2, 3]
+3 1 1 3
+After:  [1, 2, 2, 1]
+
+Before: [2, 2, 2, 2]
+2 1 2 2
+After:  [2, 2, 1, 2]
+
+Before: [1, 3, 1, 3]
+2 1 3 0
+After:  [1, 3, 1, 3]
+
+Before: [2, 3, 1, 2]
+8 3 2 2
+After:  [2, 3, 4, 2]
+
+Before: [1, 1, 2, 3]
+13 1 0 3
+After:  [1, 1, 2, 1]
+
+Before: [0, 2, 1, 3]
+4 3 2 0
+After:  [5, 2, 1, 3]
+
+Before: [2, 1, 1, 3]
+12 0 3 0
+After:  [0, 1, 1, 3]
+
+Before: [0, 0, 3, 1]
+4 3 3 0
+After:  [4, 0, 3, 1]
+
+Before: [2, 0, 3, 2]
+15 2 3 1
+After:  [2, 6, 3, 2]
+
+Before: [1, 0, 3, 3]
+0 1 0 1
+After:  [1, 1, 3, 3]
+
+Before: [0, 2, 0, 1]
+10 0 0 2
+After:  [0, 2, 0, 1]
+
+Before: [2, 1, 2, 2]
+1 3 1 2
+After:  [2, 1, 3, 2]
+
+Before: [3, 2, 2, 0]
+7 1 0 3
+After:  [3, 2, 2, 1]
+
+Before: [2, 3, 2, 3]
+12 0 3 1
+After:  [2, 0, 2, 3]
+
+Before: [0, 0, 3, 0]
+10 0 0 2
+After:  [0, 0, 0, 0]
+
+Before: [3, 2, 3, 3]
+7 1 0 2
+After:  [3, 2, 1, 3]
+
+Before: [2, 2, 3, 2]
+3 1 1 2
+After:  [2, 2, 1, 2]
+
+Before: [1, 0, 3, 1]
+4 2 2 2
+After:  [1, 0, 5, 1]
+
+Before: [2, 0, 1, 1]
+6 3 3 3
+After:  [2, 0, 1, 0]
+
+Before: [2, 0, 3, 2]
+15 2 3 2
+After:  [2, 0, 6, 2]
+
+Before: [1, 2, 1, 3]
+12 0 3 3
+After:  [1, 2, 1, 0]
+
+Before: [3, 1, 1, 2]
+15 0 3 1
+After:  [3, 6, 1, 2]
+
+Before: [1, 0, 0, 3]
+4 0 1 1
+After:  [1, 2, 0, 3]
+
+Before: [0, 3, 0, 0]
+10 0 0 0
+After:  [0, 3, 0, 0]
+
+Before: [1, 3, 2, 2]
+9 0 2 1
+After:  [1, 3, 2, 2]
+
+Before: [0, 2, 1, 0]
+10 0 0 3
+After:  [0, 2, 1, 0]
+
+Before: [0, 1, 0, 1]
+6 3 3 3
+After:  [0, 1, 0, 0]
+
+Before: [2, 0, 3, 3]
+12 0 3 2
+After:  [2, 0, 0, 3]
+
+Before: [2, 0, 2, 2]
+9 1 2 2
+After:  [2, 0, 2, 2]
+
+Before: [0, 1, 0, 1]
+5 1 0 1
+After:  [0, 1, 0, 1]
+
+Before: [0, 3, 2, 2]
+14 3 2 1
+After:  [0, 4, 2, 2]
+
+Before: [1, 1, 3, 3]
+13 1 0 0
+After:  [1, 1, 3, 3]
+
+Before: [3, 2, 2, 1]
+8 0 2 2
+After:  [3, 2, 6, 1]
+
+Before: [3, 2, 1, 3]
+11 2 0 2
+After:  [3, 2, 3, 3]
+
+Before: [3, 3, 1, 3]
+3 1 0 2
+After:  [3, 3, 1, 3]
+
+Before: [2, 0, 0, 1]
+6 3 3 3
+After:  [2, 0, 0, 0]
+
+Before: [0, 0, 3, 2]
+10 0 0 2
+After:  [0, 0, 0, 2]
+
+Before: [1, 1, 3, 1]
+6 3 3 1
+After:  [1, 0, 3, 1]
+
+Before: [0, 0, 2, 2]
+10 0 0 3
+After:  [0, 0, 2, 0]
+
+Before: [0, 0, 0, 2]
+6 3 3 0
+After:  [0, 0, 0, 2]
+
+Before: [1, 0, 2, 1]
+14 2 2 2
+After:  [1, 0, 4, 1]
+
+Before: [1, 1, 1, 2]
+13 1 0 3
+After:  [1, 1, 1, 1]
+
+Before: [1, 3, 1, 3]
+11 2 1 2
+After:  [1, 3, 3, 3]
+
+Before: [2, 1, 1, 2]
+1 3 1 1
+After:  [2, 3, 1, 2]
+
+Before: [3, 0, 1, 0]
+11 1 0 1
+After:  [3, 3, 1, 0]
+
+Before: [0, 2, 3, 2]
+11 0 2 0
+After:  [3, 2, 3, 2]
+
+Before: [1, 0, 1, 3]
+12 0 3 2
+After:  [1, 0, 0, 3]
+
+Before: [1, 1, 0, 0]
+13 1 0 1
+After:  [1, 1, 0, 0]
+
+Before: [0, 1, 2, 0]
+5 1 0 2
+After:  [0, 1, 1, 0]
+
+Before: [3, 1, 0, 2]
+15 0 3 2
+After:  [3, 1, 6, 2]
+
+Before: [2, 0, 1, 0]
+8 0 2 3
+After:  [2, 0, 1, 4]
+
+Before: [3, 1, 1, 2]
+1 3 1 2
+After:  [3, 1, 3, 2]
+
+Before: [1, 2, 0, 1]
+15 3 1 3
+After:  [1, 2, 0, 2]
+
+Before: [2, 1, 3, 2]
+9 1 3 3
+After:  [2, 1, 3, 3]
+
+Before: [0, 3, 0, 1]
+10 0 0 1
+After:  [0, 0, 0, 1]
+
+Before: [3, 0, 3, 1]
+1 3 2 2
+After:  [3, 0, 3, 1]
+
+Before: [2, 0, 3, 1]
+4 0 3 1
+After:  [2, 5, 3, 1]
+
+Before: [2, 3, 2, 1]
+14 0 2 2
+After:  [2, 3, 4, 1]
+
+Before: [3, 2, 2, 3]
+3 1 1 1
+After:  [3, 1, 2, 3]
+
+Before: [0, 1, 0, 3]
+5 1 0 2
+After:  [0, 1, 1, 3]
+
+Before: [1, 3, 1, 3]
+12 0 3 3
+After:  [1, 3, 1, 0]
+
+Before: [1, 1, 1, 3]
+13 1 0 0
+After:  [1, 1, 1, 3]
+
+Before: [0, 0, 3, 0]
+10 0 0 1
+After:  [0, 0, 3, 0]
+
+Before: [2, 2, 0, 2]
+3 1 1 1
+After:  [2, 1, 0, 2]
+
+Before: [0, 0, 0, 0]
+10 0 0 3
+After:  [0, 0, 0, 0]
+
+Before: [0, 1, 2, 3]
+14 2 2 1
+After:  [0, 4, 2, 3]
+
+Before: [0, 1, 2, 1]
+1 3 2 0
+After:  [3, 1, 2, 1]
+
+Before: [1, 2, 0, 1]
+15 0 1 3
+After:  [1, 2, 0, 2]
+
+Before: [1, 3, 2, 3]
+8 1 2 0
+After:  [6, 3, 2, 3]
+
+Before: [2, 2, 2, 2]
+14 0 2 3
+After:  [2, 2, 2, 4]
+
+Before: [3, 0, 2, 2]
+14 3 2 2
+After:  [3, 0, 4, 2]
+
+Before: [3, 2, 0, 1]
+6 3 3 2
+After:  [3, 2, 0, 1]
+
+Before: [1, 1, 2, 3]
+8 3 2 2
+After:  [1, 1, 6, 3]
+
+Before: [0, 1, 0, 3]
+10 0 0 1
+After:  [0, 0, 0, 3]
+
+Before: [3, 3, 0, 2]
+15 1 3 0
+After:  [6, 3, 0, 2]
+
+Before: [1, 0, 0, 0]
+0 1 0 2
+After:  [1, 0, 1, 0]
+
+Before: [1, 3, 3, 3]
+2 1 3 0
+After:  [1, 3, 3, 3]
+
+Before: [3, 3, 2, 1]
+3 1 0 2
+After:  [3, 3, 1, 1]
+
+Before: [3, 2, 2, 1]
+7 1 0 3
+After:  [3, 2, 2, 1]
+
+Before: [3, 2, 2, 0]
+9 3 2 3
+After:  [3, 2, 2, 2]
+
+Before: [1, 1, 1, 3]
+12 0 3 2
+After:  [1, 1, 0, 3]
+
+Before: [2, 2, 0, 3]
+12 0 3 0
+After:  [0, 2, 0, 3]
+
+Before: [3, 1, 2, 1]
+1 3 2 0
+After:  [3, 1, 2, 1]
+
+Before: [3, 2, 0, 3]
+9 2 3 2
+After:  [3, 2, 3, 3]
+
+Before: [1, 2, 0, 0]
+15 0 1 0
+After:  [2, 2, 0, 0]
+
+Before: [1, 2, 1, 2]
+6 1 0 3
+After:  [1, 2, 1, 1]
+
+Before: [2, 0, 3, 1]
+1 3 2 2
+After:  [2, 0, 3, 1]
+
+Before: [0, 0, 2, 3]
+8 3 3 3
+After:  [0, 0, 2, 9]
+
+Before: [3, 2, 3, 0]
+11 3 1 1
+After:  [3, 2, 3, 0]
+
+Before: [2, 2, 2, 2]
+3 1 0 1
+After:  [2, 1, 2, 2]
+
+Before: [1, 2, 0, 1]
+15 3 1 1
+After:  [1, 2, 0, 1]
+
+Before: [3, 2, 2, 0]
+14 2 2 3
+After:  [3, 2, 2, 4]
+
+Before: [0, 0, 0, 1]
+6 3 3 0
+After:  [0, 0, 0, 1]
+
+Before: [1, 0, 3, 0]
+0 1 0 3
+After:  [1, 0, 3, 1]
+
+Before: [3, 2, 3, 2]
+7 1 0 2
+After:  [3, 2, 1, 2]
+
+Before: [0, 3, 3, 3]
+3 1 2 3
+After:  [0, 3, 3, 1]
+
+Before: [1, 0, 1, 2]
+8 3 2 2
+After:  [1, 0, 4, 2]
+
+Before: [0, 2, 1, 3]
+10 0 0 2
+After:  [0, 2, 0, 3]
+
+Before: [2, 3, 2, 2]
+14 3 2 3
+After:  [2, 3, 2, 4]
+
+Before: [3, 0, 2, 1]
+1 3 2 0
+After:  [3, 0, 2, 1]
+
+Before: [0, 0, 2, 1]
+6 3 3 1
+After:  [0, 0, 2, 1]
+
+Before: [0, 1, 1, 2]
+9 0 1 0
+After:  [1, 1, 1, 2]
+
+Before: [3, 2, 0, 2]
+7 1 0 2
+After:  [3, 2, 1, 2]
+
+Before: [2, 2, 1, 2]
+4 2 3 0
+After:  [4, 2, 1, 2]
+
+Before: [0, 2, 3, 2]
+3 1 1 0
+After:  [1, 2, 3, 2]
+
+Before: [3, 1, 3, 1]
+4 2 3 0
+After:  [6, 1, 3, 1]
+
+Before: [2, 3, 0, 1]
+6 3 3 0
+After:  [0, 3, 0, 1]
+
+Before: [2, 2, 3, 1]
+4 2 3 2
+After:  [2, 2, 6, 1]
+
+Before: [0, 1, 2, 1]
+1 3 2 1
+After:  [0, 3, 2, 1]
+
+Before: [2, 2, 2, 3]
+2 1 2 3
+After:  [2, 2, 2, 1]
+
+Before: [3, 0, 1, 2]
+8 3 2 1
+After:  [3, 4, 1, 2]
+
+Before: [2, 2, 3, 3]
+3 1 1 3
+After:  [2, 2, 3, 1]
+
+Before: [3, 2, 2, 2]
+7 1 0 3
+After:  [3, 2, 2, 1]
+
+Before: [3, 2, 1, 2]
+4 0 1 1
+After:  [3, 4, 1, 2]
+
+Before: [1, 0, 0, 2]
+6 3 3 0
+After:  [0, 0, 0, 2]
+
+Before: [2, 3, 2, 1]
+1 3 2 1
+After:  [2, 3, 2, 1]
+
+Before: [3, 2, 1, 0]
+7 1 0 2
+After:  [3, 2, 1, 0]
+
+Before: [1, 1, 0, 0]
+13 1 0 3
+After:  [1, 1, 0, 1]
+
+Before: [3, 2, 2, 2]
+2 1 2 0
+After:  [1, 2, 2, 2]
+
+Before: [0, 2, 3, 2]
+4 3 3 1
+After:  [0, 5, 3, 2]
+
+Before: [0, 0, 3, 3]
+9 0 3 0
+After:  [3, 0, 3, 3]
+
+Before: [2, 2, 3, 0]
+8 1 2 3
+After:  [2, 2, 3, 4]
+
+Before: [1, 2, 1, 3]
+3 1 1 1
+After:  [1, 1, 1, 3]
+
+Before: [0, 1, 1, 3]
+5 1 0 3
+After:  [0, 1, 1, 1]
+
+Before: [1, 3, 2, 1]
+14 2 2 0
+After:  [4, 3, 2, 1]
+
+Before: [1, 0, 1, 2]
+0 1 0 0
+After:  [1, 0, 1, 2]
+
+Before: [0, 1, 2, 1]
+11 0 3 1
+After:  [0, 1, 2, 1]
+
+Before: [3, 3, 3, 2]
+15 1 3 0
+After:  [6, 3, 3, 2]
+
+Before: [1, 0, 3, 1]
+0 1 0 1
+After:  [1, 1, 3, 1]
+
+Before: [3, 3, 2, 1]
+4 3 1 0
+After:  [2, 3, 2, 1]
+
+Before: [2, 2, 1, 3]
+3 1 1 1
+After:  [2, 1, 1, 3]
+
+Before: [2, 3, 0, 2]
+4 3 3 1
+After:  [2, 5, 0, 2]
+
+Before: [1, 1, 0, 2]
+1 3 1 2
+After:  [1, 1, 3, 2]
+
+Before: [3, 2, 2, 2]
+7 1 0 2
+After:  [3, 2, 1, 2]
+
+Before: [3, 2, 3, 3]
+7 1 0 1
+After:  [3, 1, 3, 3]
+
+Before: [3, 0, 0, 2]
+6 3 3 3
+After:  [3, 0, 0, 0]
+
+Before: [2, 3, 1, 3]
+2 1 3 2
+After:  [2, 3, 1, 3]
+
+Before: [2, 2, 0, 3]
+12 0 3 3
+After:  [2, 2, 0, 0]
+
+Before: [2, 3, 1, 3]
+2 1 3 1
+After:  [2, 1, 1, 3]
+
+Before: [0, 3, 3, 3]
+2 1 3 0
+After:  [1, 3, 3, 3]
+
+Before: [1, 1, 1, 2]
+13 1 0 1
+After:  [1, 1, 1, 2]
+
+Before: [2, 0, 3, 1]
+6 3 3 3
+After:  [2, 0, 3, 0]
+
+Before: [1, 2, 1, 1]
+11 2 1 2
+After:  [1, 2, 3, 1]
+
+Before: [1, 3, 0, 2]
+9 0 3 0
+After:  [3, 3, 0, 2]
+
+Before: [1, 3, 3, 3]
+8 3 3 2
+After:  [1, 3, 9, 3]
+
+Before: [3, 3, 3, 2]
+3 1 2 2
+After:  [3, 3, 1, 2]
+
+Before: [3, 2, 3, 3]
+3 1 1 3
+After:  [3, 2, 3, 1]
+
+Before: [3, 3, 2, 2]
+14 3 2 2
+After:  [3, 3, 4, 2]
+
+Before: [0, 2, 3, 0]
+3 1 1 1
+After:  [0, 1, 3, 0]
+
+Before: [0, 1, 3, 1]
+10 0 0 2
+After:  [0, 1, 0, 1]
+
+Before: [0, 0, 0, 3]
+10 0 0 3
+After:  [0, 0, 0, 0]
+
+Before: [2, 0, 2, 3]
+14 2 2 0
+After:  [4, 0, 2, 3]
+
+Before: [1, 0, 3, 2]
+4 3 3 0
+After:  [5, 0, 3, 2]
+
+Before: [0, 1, 2, 1]
+5 1 0 3
+After:  [0, 1, 2, 1]
+
+Before: [0, 3, 2, 3]
+2 1 3 1
+After:  [0, 1, 2, 3]
+
+Before: [3, 1, 2, 0]
+14 2 2 3
+After:  [3, 1, 2, 4]
+
+Before: [1, 3, 0, 3]
+11 0 1 0
+After:  [3, 3, 0, 3]
+
+Before: [3, 2, 2, 3]
+7 1 0 2
+After:  [3, 2, 1, 3]
+
+Before: [2, 2, 1, 3]
+8 0 3 2
+After:  [2, 2, 6, 3]
+
+Before: [0, 2, 3, 1]
+10 0 0 2
+After:  [0, 2, 0, 1]
+
+Before: [1, 0, 2, 1]
+1 3 2 0
+After:  [3, 0, 2, 1]
+
+Before: [3, 2, 2, 1]
+2 1 2 1
+After:  [3, 1, 2, 1]
+
+Before: [3, 2, 1, 3]
+7 1 0 1
+After:  [3, 1, 1, 3]
+
+Before: [1, 1, 2, 1]
+1 3 2 1
+After:  [1, 3, 2, 1]
+
+Before: [0, 1, 3, 2]
+5 1 0 2
+After:  [0, 1, 1, 2]
+
+Before: [3, 1, 0, 3]
+4 0 2 1
+After:  [3, 5, 0, 3]
+
+Before: [1, 0, 3, 2]
+0 1 0 1
+After:  [1, 1, 3, 2]
+
+Before: [0, 2, 0, 1]
+10 0 0 0
+After:  [0, 2, 0, 1]
+
+Before: [1, 1, 0, 1]
+13 1 0 0
+After:  [1, 1, 0, 1]
+
+Before: [1, 0, 3, 3]
+4 2 2 1
+After:  [1, 5, 3, 3]
+
+Before: [0, 1, 2, 2]
+10 0 0 3
+After:  [0, 1, 2, 0]
+
+Before: [2, 2, 3, 1]
+4 2 2 2
+After:  [2, 2, 5, 1]
+
+Before: [1, 3, 1, 3]
+2 1 3 1
+After:  [1, 1, 1, 3]
+
+Before: [0, 1, 3, 3]
+5 1 0 1
+After:  [0, 1, 3, 3]
+
+Before: [0, 0, 1, 1]
+10 0 0 0
+After:  [0, 0, 1, 1]
+
+Before: [2, 0, 2, 3]
+12 0 3 2
+After:  [2, 0, 0, 3]
+
+Before: [0, 2, 3, 1]
+3 1 1 2
+After:  [0, 2, 1, 1]
+
+Before: [0, 3, 1, 0]
+4 1 2 3
+After:  [0, 3, 1, 5]
+
+Before: [1, 2, 1, 3]
+6 1 0 3
+After:  [1, 2, 1, 1]
+
+Before: [0, 1, 0, 0]
+5 1 0 3
+After:  [0, 1, 0, 1]
+
+Before: [0, 0, 3, 2]
+11 1 2 2
+After:  [0, 0, 3, 2]
+
+Before: [1, 1, 3, 3]
+12 0 3 3
+After:  [1, 1, 3, 0]
+
+Before: [2, 3, 1, 2]
+11 2 1 2
+After:  [2, 3, 3, 2]
+
+Before: [1, 1, 3, 3]
+12 0 3 2
+After:  [1, 1, 0, 3]
+
+Before: [1, 2, 2, 2]
+2 1 2 2
+After:  [1, 2, 1, 2]
+
+Before: [2, 3, 2, 2]
+15 1 3 0
+After:  [6, 3, 2, 2]
+
+Before: [0, 0, 2, 1]
+4 3 1 2
+After:  [0, 0, 2, 1]
+
+Before: [3, 3, 1, 3]
+2 1 3 3
+After:  [3, 3, 1, 1]
+
+Before: [0, 1, 1, 3]
+11 0 2 0
+After:  [1, 1, 1, 3]
+
+Before: [1, 1, 1, 3]
+13 1 0 1
+After:  [1, 1, 1, 3]
+
+Before: [1, 3, 2, 1]
+14 2 2 2
+After:  [1, 3, 4, 1]
+
+Before: [0, 1, 2, 2]
+5 1 0 0
+After:  [1, 1, 2, 2]
+
+Before: [2, 2, 0, 0]
+3 1 0 0
+After:  [1, 2, 0, 0]
+
+Before: [0, 2, 3, 1]
+10 0 0 3
+After:  [0, 2, 3, 0]
+
+Before: [1, 3, 2, 3]
+12 0 3 1
+After:  [1, 0, 2, 3]
+
+Before: [1, 3, 3, 1]
+1 3 2 1
+After:  [1, 3, 3, 1]
+
+Before: [0, 2, 0, 3]
+4 3 2 2
+After:  [0, 2, 5, 3]
+
+Before: [1, 2, 2, 1]
+14 2 2 3
+After:  [1, 2, 2, 4]
+
+Before: [2, 3, 3, 1]
+3 1 2 0
+After:  [1, 3, 3, 1]
+
+Before: [3, 2, 3, 2]
+7 1 0 3
+After:  [3, 2, 3, 1]
+
+Before: [1, 0, 3, 2]
+11 1 3 0
+After:  [2, 0, 3, 2]
+
+Before: [3, 0, 2, 1]
+8 3 2 1
+After:  [3, 2, 2, 1]
+
+Before: [2, 1, 3, 2]
+15 2 3 3
+After:  [2, 1, 3, 6]
+
+Before: [1, 2, 2, 0]
+2 1 2 2
+After:  [1, 2, 1, 0]
+
+Before: [3, 3, 0, 2]
+3 1 0 2
+After:  [3, 3, 1, 2]
+
+Before: [2, 2, 1, 1]
+6 1 2 0
+After:  [1, 2, 1, 1]
+
+Before: [1, 0, 3, 3]
+0 1 0 0
+After:  [1, 0, 3, 3]
+
+Before: [1, 1, 1, 0]
+13 1 0 0
+After:  [1, 1, 1, 0]
+
+Before: [2, 2, 2, 1]
+1 3 2 2
+After:  [2, 2, 3, 1]
+
+Before: [2, 2, 2, 1]
+2 1 2 2
+After:  [2, 2, 1, 1]
+
+Before: [3, 1, 1, 1]
+6 3 3 2
+After:  [3, 1, 0, 1]
+
+Before: [3, 1, 3, 3]
+9 1 3 1
+After:  [3, 3, 3, 3]
+
+Before: [0, 2, 3, 2]
+10 0 0 2
+After:  [0, 2, 0, 2]
+
+Before: [0, 3, 1, 1]
+11 0 2 3
+After:  [0, 3, 1, 1]
+
+Before: [1, 0, 3, 1]
+1 3 2 2
+After:  [1, 0, 3, 1]
+
+Before: [2, 1, 2, 2]
+1 3 1 1
+After:  [2, 3, 2, 2]
+
+Before: [3, 2, 2, 3]
+2 1 2 0
+After:  [1, 2, 2, 3]
+
+Before: [1, 0, 0, 2]
+0 1 0 0
+After:  [1, 0, 0, 2]
+
+Before: [0, 1, 0, 1]
+10 0 0 0
+After:  [0, 1, 0, 1]
+
+Before: [1, 0, 0, 3]
+12 0 3 3
+After:  [1, 0, 0, 0]
+
+Before: [1, 1, 0, 3]
+13 1 0 1
+After:  [1, 1, 0, 3]
+
+Before: [1, 0, 0, 3]
+0 1 0 0
+After:  [1, 0, 0, 3]
+
+Before: [3, 2, 1, 3]
+7 1 0 3
+After:  [3, 2, 1, 1]
+
+Before: [0, 3, 3, 3]
+2 1 3 3
+After:  [0, 3, 3, 1]
+
+Before: [3, 2, 1, 2]
+7 1 0 1
+After:  [3, 1, 1, 2]
+
+Before: [3, 2, 0, 1]
+4 3 3 0
+After:  [4, 2, 0, 1]
+
+Before: [3, 2, 1, 0]
+6 1 2 2
+After:  [3, 2, 1, 0]
+
+Before: [0, 1, 1, 2]
+5 1 0 1
+After:  [0, 1, 1, 2]
+
+Before: [3, 3, 3, 3]
+2 1 3 1
+After:  [3, 1, 3, 3]
+
+Before: [1, 3, 3, 2]
+15 2 3 2
+After:  [1, 3, 6, 2]
+
+Before: [3, 2, 3, 1]
+15 3 1 2
+After:  [3, 2, 2, 1]
+
+Before: [3, 3, 0, 3]
+4 1 1 2
+After:  [3, 3, 4, 3]
+
+Before: [0, 0, 2, 3]
+9 0 3 1
+After:  [0, 3, 2, 3]
+
+Before: [1, 3, 3, 1]
+1 3 2 2
+After:  [1, 3, 3, 1]
+
+Before: [3, 0, 2, 2]
+15 0 3 0
+After:  [6, 0, 2, 2]
+
+Before: [0, 1, 3, 3]
+9 0 1 3
+After:  [0, 1, 3, 1]
+
+Before: [1, 3, 3, 2]
+4 1 1 3
+After:  [1, 3, 3, 4]
+
+Before: [1, 0, 2, 2]
+0 1 0 1
+After:  [1, 1, 2, 2]
+
+Before: [1, 2, 2, 1]
+15 3 1 0
+After:  [2, 2, 2, 1]
+
+Before: [0, 1, 2, 1]
+5 1 0 1
+After:  [0, 1, 2, 1]
+
+Before: [1, 2, 1, 1]
+15 0 1 0
+After:  [2, 2, 1, 1]
+
+Before: [1, 1, 0, 3]
+13 1 0 2
+After:  [1, 1, 1, 3]
+
+Before: [2, 1, 2, 3]
+14 0 2 0
+After:  [4, 1, 2, 3]
+
+Before: [1, 3, 2, 3]
+8 2 3 3
+After:  [1, 3, 2, 6]
+
+Before: [0, 1, 1, 1]
+9 0 1 1
+After:  [0, 1, 1, 1]
+
+Before: [2, 0, 1, 2]
+8 3 2 3
+After:  [2, 0, 1, 4]
+
+Before: [1, 0, 1, 1]
+0 1 0 3
+After:  [1, 0, 1, 1]
+
+Before: [2, 3, 1, 1]
+6 3 3 3
+After:  [2, 3, 1, 0]
+
+Before: [3, 2, 3, 3]
+7 1 0 3
+After:  [3, 2, 3, 1]
+
+Before: [1, 3, 3, 3]
+3 1 2 1
+After:  [1, 1, 3, 3]
+
+Before: [0, 1, 1, 3]
+5 1 0 2
+After:  [0, 1, 1, 3]
+
+Before: [3, 3, 1, 3]
+2 1 3 1
+After:  [3, 1, 1, 3]
+
+Before: [0, 1, 2, 0]
+5 1 0 0
+After:  [1, 1, 2, 0]
+
+Before: [2, 1, 2, 0]
+9 1 2 0
+After:  [3, 1, 2, 0]
+
+Before: [0, 0, 3, 1]
+10 0 0 1
+After:  [0, 0, 3, 1]
+
+Before: [0, 1, 0, 2]
+1 3 1 1
+After:  [0, 3, 0, 2]
+
+Before: [3, 0, 1, 0]
+11 1 0 2
+After:  [3, 0, 3, 0]
+
+Before: [1, 2, 3, 1]
+6 1 0 3
+After:  [1, 2, 3, 1]
+
+Before: [1, 0, 3, 0]
+0 1 0 0
+After:  [1, 0, 3, 0]
+
+Before: [0, 2, 1, 0]
+11 0 1 3
+After:  [0, 2, 1, 2]
+
+Before: [1, 1, 1, 0]
+13 1 0 3
+After:  [1, 1, 1, 1]
+
+Before: [1, 2, 3, 1]
+1 3 2 3
+After:  [1, 2, 3, 3]
+
+Before: [0, 1, 3, 0]
+5 1 0 2
+After:  [0, 1, 1, 0]
+
+Before: [3, 0, 2, 2]
+6 3 3 0
+After:  [0, 0, 2, 2]
+
+Before: [1, 2, 3, 1]
+6 3 3 3
+After:  [1, 2, 3, 0]
+
+Before: [3, 2, 0, 1]
+7 1 0 2
+After:  [3, 2, 1, 1]
+
+Before: [1, 1, 3, 2]
+13 1 0 1
+After:  [1, 1, 3, 2]
+
+Before: [0, 0, 1, 2]
+10 0 0 2
+After:  [0, 0, 0, 2]
+
+Before: [3, 2, 2, 2]
+6 3 3 0
+After:  [0, 2, 2, 2]
+
+Before: [1, 0, 2, 0]
+0 1 0 0
+After:  [1, 0, 2, 0]
+
+Before: [1, 0, 2, 2]
+9 0 2 3
+After:  [1, 0, 2, 3]
+
+Before: [2, 0, 3, 3]
+12 0 3 1
+After:  [2, 0, 3, 3]
+
+Before: [2, 3, 0, 3]
+2 1 3 1
+After:  [2, 1, 0, 3]
+
+Before: [1, 3, 2, 2]
+6 3 3 3
+After:  [1, 3, 2, 0]
+
+Before: [3, 1, 1, 1]
+4 3 3 0
+After:  [4, 1, 1, 1]
+
+Before: [2, 1, 1, 0]
+8 0 2 2
+After:  [2, 1, 4, 0]
+
+Before: [1, 0, 2, 3]
+0 1 0 3
+After:  [1, 0, 2, 1]
+
+Before: [1, 2, 2, 1]
+4 3 3 1
+After:  [1, 4, 2, 1]
+
+Before: [0, 3, 2, 1]
+10 0 0 3
+After:  [0, 3, 2, 0]
+
+Before: [0, 1, 0, 2]
+5 1 0 0
+After:  [1, 1, 0, 2]
+
+Before: [0, 1, 1, 1]
+5 1 0 0
+After:  [1, 1, 1, 1]
+
+Before: [1, 2, 3, 3]
+12 0 3 2
+After:  [1, 2, 0, 3]
+
+Before: [1, 3, 3, 1]
+3 1 2 1
+After:  [1, 1, 3, 1]
+
+Before: [1, 0, 3, 0]
+0 1 0 2
+After:  [1, 0, 1, 0]
+
+Before: [3, 2, 3, 0]
+7 1 0 1
+After:  [3, 1, 3, 0]
+
+Before: [1, 1, 1, 1]
+13 1 0 0
+After:  [1, 1, 1, 1]
+
+Before: [0, 0, 0, 3]
+9 1 3 1
+After:  [0, 3, 0, 3]
+
+Before: [3, 1, 0, 0]
+11 2 0 2
+After:  [3, 1, 3, 0]
+
+Before: [0, 0, 1, 3]
+11 0 2 0
+After:  [1, 0, 1, 3]
+
+Before: [3, 3, 3, 2]
+4 2 1 1
+After:  [3, 4, 3, 2]
+
+Before: [0, 3, 2, 3]
+2 1 3 0
+After:  [1, 3, 2, 3]
+
+Before: [1, 1, 1, 3]
+9 0 3 2
+After:  [1, 1, 3, 3]
+
+Before: [2, 2, 1, 1]
+15 3 1 3
+After:  [2, 2, 1, 2]
+
+Before: [3, 2, 1, 3]
+7 1 0 2
+After:  [3, 2, 1, 3]
+
+Before: [1, 1, 0, 1]
+13 1 0 2
+After:  [1, 1, 1, 1]
+
+Before: [3, 2, 2, 3]
+3 1 1 0
+After:  [1, 2, 2, 3]
+
+Before: [0, 1, 2, 3]
+5 1 0 0
+After:  [1, 1, 2, 3]
+
+Before: [0, 1, 3, 3]
+5 1 0 3
+After:  [0, 1, 3, 1]
+
+Before: [0, 3, 1, 2]
+6 3 3 0
+After:  [0, 3, 1, 2]
+
+Before: [0, 2, 3, 1]
+8 1 2 2
+After:  [0, 2, 4, 1]
+
+Before: [1, 0, 2, 3]
+0 1 0 2
+After:  [1, 0, 1, 3]
+
+Before: [2, 1, 1, 3]
+9 1 3 1
+After:  [2, 3, 1, 3]
+
+Before: [2, 3, 3, 3]
+12 0 3 1
+After:  [2, 0, 3, 3]
+
+Before: [1, 2, 3, 3]
+3 1 1 3
+After:  [1, 2, 3, 1]
+
+Before: [1, 2, 0, 2]
+15 0 1 3
+After:  [1, 2, 0, 2]
+
+Before: [1, 0, 0, 0]
+0 1 0 0
+After:  [1, 0, 0, 0]
+
+Before: [0, 1, 1, 1]
+6 2 3 0
+After:  [0, 1, 1, 1]
+
+Before: [3, 2, 2, 0]
+7 1 0 1
+After:  [3, 1, 2, 0]
+
+Before: [2, 2, 0, 3]
+8 0 3 1
+After:  [2, 6, 0, 3]
+
+Before: [1, 1, 0, 3]
+12 0 3 2
+After:  [1, 1, 0, 3]
+
+Before: [2, 3, 2, 3]
+12 0 3 0
+After:  [0, 3, 2, 3]
+
+Before: [2, 0, 1, 1]
+6 3 3 1
+After:  [2, 0, 1, 1]
+
+Before: [1, 2, 0, 1]
+4 1 3 0
+After:  [5, 2, 0, 1]
+
+Before: [0, 3, 2, 3]
+10 0 0 3
+After:  [0, 3, 2, 0]
+
+Before: [2, 1, 2, 3]
+9 1 2 2
+After:  [2, 1, 3, 3]
+
+Before: [2, 1, 2, 0]
+11 1 0 2
+After:  [2, 1, 3, 0]
+
+Before: [0, 2, 2, 2]
+2 1 2 0
+After:  [1, 2, 2, 2]
+
+Before: [1, 3, 2, 3]
+8 0 2 2
+After:  [1, 3, 2, 3]
+
+Before: [1, 0, 0, 3]
+9 2 3 1
+After:  [1, 3, 0, 3]
+
+Before: [1, 0, 2, 2]
+0 1 0 2
+After:  [1, 0, 1, 2]
+
+Before: [0, 1, 1, 2]
+1 3 1 0
+After:  [3, 1, 1, 2]
+
+Before: [3, 1, 3, 1]
+1 3 2 3
+After:  [3, 1, 3, 3]
+
+Before: [0, 1, 0, 3]
+4 3 2 2
+After:  [0, 1, 5, 3]
+
+Before: [1, 2, 2, 3]
+8 3 3 0
+After:  [9, 2, 2, 3]
+
+Before: [1, 2, 2, 2]
+14 3 2 2
+After:  [1, 2, 4, 2]
+
+Before: [0, 3, 0, 3]
+2 1 3 2
+After:  [0, 3, 1, 3]
+
+Before: [2, 2, 0, 0]
+3 1 0 2
+After:  [2, 2, 1, 0]
+
+Before: [1, 2, 3, 2]
+9 0 2 1
+After:  [1, 3, 3, 2]
+
+Before: [0, 3, 2, 2]
+8 1 2 0
+After:  [6, 3, 2, 2]
+
+Before: [1, 3, 2, 3]
+2 1 3 0
+After:  [1, 3, 2, 3]
+
+Before: [1, 0, 2, 1]
+1 3 2 1
+After:  [1, 3, 2, 1]
+
+Before: [0, 2, 2, 3]
+10 0 0 1
+After:  [0, 0, 2, 3]
+
+Before: [0, 2, 2, 3]
+2 1 2 1
+After:  [0, 1, 2, 3]
+
+Before: [3, 1, 2, 1]
+14 2 2 1
+After:  [3, 4, 2, 1]
+
+Before: [1, 0, 0, 1]
+4 0 3 3
+After:  [1, 0, 0, 4]
+
+Before: [1, 1, 0, 2]
+8 3 2 2
+After:  [1, 1, 4, 2]
+
+Before: [0, 1, 1, 1]
+4 1 3 1
+After:  [0, 4, 1, 1]
+
+Before: [1, 3, 1, 2]
+15 1 3 3
+After:  [1, 3, 1, 6]
+
+Before: [2, 2, 2, 2]
+6 3 3 0
+After:  [0, 2, 2, 2]
+
+Before: [1, 2, 3, 3]
+8 1 3 1
+After:  [1, 6, 3, 3]
+
+Before: [3, 2, 2, 1]
+14 2 2 1
+After:  [3, 4, 2, 1]
+
+Before: [3, 1, 2, 3]
+8 1 2 3
+After:  [3, 1, 2, 2]
+
+Before: [2, 0, 3, 3]
+4 2 1 0
+After:  [4, 0, 3, 3]
+
+Before: [0, 1, 1, 3]
+5 1 0 0
+After:  [1, 1, 1, 3]
+
+Before: [1, 2, 2, 1]
+15 3 1 2
+After:  [1, 2, 2, 1]
+
+Before: [2, 3, 3, 3]
+4 3 1 1
+After:  [2, 4, 3, 3]
+
+Before: [1, 3, 2, 1]
+14 2 2 1
+After:  [1, 4, 2, 1]
+
+Before: [0, 1, 2, 3]
+5 1 0 3
+After:  [0, 1, 2, 1]
+
+Before: [1, 1, 1, 2]
+13 1 0 2
+After:  [1, 1, 1, 2]
+
+Before: [3, 2, 2, 0]
+7 1 0 0
+After:  [1, 2, 2, 0]
+
+Before: [0, 1, 0, 2]
+5 1 0 2
+After:  [0, 1, 1, 2]
+
+Before: [1, 0, 1, 3]
+0 1 0 3
+After:  [1, 0, 1, 1]
+
+Before: [0, 3, 0, 3]
+2 1 3 3
+After:  [0, 3, 0, 1]
+
+Before: [0, 2, 2, 1]
+10 0 0 1
+After:  [0, 0, 2, 1]
+
+Before: [2, 2, 2, 0]
+14 1 2 3
+After:  [2, 2, 2, 4]
+
+Before: [3, 1, 3, 2]
+15 2 3 3
+After:  [3, 1, 3, 6]
+
+Before: [1, 1, 2, 0]
+13 1 0 2
+After:  [1, 1, 1, 0]
+
+Before: [1, 0, 1, 1]
+0 1 0 2
+After:  [1, 0, 1, 1]
+
+Before: [3, 2, 1, 2]
+7 1 0 2
+After:  [3, 2, 1, 2]
+
+Before: [2, 3, 3, 3]
+12 0 3 2
+After:  [2, 3, 0, 3]
+
+Before: [0, 1, 3, 3]
+10 0 0 3
+After:  [0, 1, 3, 0]
+
+Before: [3, 1, 2, 2]
+1 3 1 2
+After:  [3, 1, 3, 2]
+
+Before: [1, 3, 3, 1]
+6 3 3 2
+After:  [1, 3, 0, 1]
+
+Before: [0, 2, 3, 0]
+10 0 0 2
+After:  [0, 2, 0, 0]
+
+Before: [0, 2, 1, 3]
+10 0 0 3
+After:  [0, 2, 1, 0]
+
+Before: [2, 1, 3, 2]
+4 1 3 2
+After:  [2, 1, 4, 2]
+
+Before: [1, 0, 2, 0]
+0 1 0 1
+After:  [1, 1, 2, 0]
+
+Before: [1, 3, 0, 3]
+4 1 2 3
+After:  [1, 3, 0, 5]
+
+Before: [0, 1, 0, 3]
+5 1 0 1
+After:  [0, 1, 0, 3]
+
+Before: [2, 3, 2, 1]
+1 3 2 3
+After:  [2, 3, 2, 3]
+
+Before: [3, 2, 1, 1]
+7 1 0 0
+After:  [1, 2, 1, 1]
+
+Before: [2, 3, 2, 0]
+14 0 2 0
+After:  [4, 3, 2, 0]
+
+Before: [1, 0, 0, 3]
+9 0 3 1
+After:  [1, 3, 0, 3]
+
+Before: [0, 3, 2, 1]
+14 2 2 3
+After:  [0, 3, 2, 4]
+
+Before: [0, 1, 0, 1]
+5 1 0 0
+After:  [1, 1, 0, 1]
+
+Before: [1, 3, 3, 2]
+15 2 3 0
+After:  [6, 3, 3, 2]
+
+Before: [1, 1, 3, 0]
+4 2 3 1
+After:  [1, 6, 3, 0]
+
+Before: [1, 2, 0, 1]
+15 0 1 2
+After:  [1, 2, 2, 1]
+
+Before: [0, 1, 2, 0]
+5 1 0 1
+After:  [0, 1, 2, 0]
+
+Before: [1, 2, 3, 1]
+15 0 1 3
+After:  [1, 2, 3, 2]
+
+Before: [1, 1, 2, 2]
+13 1 0 2
+After:  [1, 1, 1, 2]
+
+Before: [3, 2, 2, 2]
+7 1 0 0
+After:  [1, 2, 2, 2]
+
+Before: [1, 1, 3, 1]
+1 3 2 3
+After:  [1, 1, 3, 3]
+
+Before: [1, 0, 2, 0]
+0 1 0 2
+After:  [1, 0, 1, 0]
+
+Before: [2, 2, 3, 3]
+12 0 3 2
+After:  [2, 2, 0, 3]
+
+Before: [1, 0, 2, 3]
+0 1 0 0
+After:  [1, 0, 2, 3]
+
+Before: [0, 1, 0, 3]
+5 1 0 3
+After:  [0, 1, 0, 1]
+
+Before: [1, 2, 3, 0]
+15 0 1 1
+After:  [1, 2, 3, 0]
+
+Before: [1, 2, 2, 0]
+14 1 2 2
+After:  [1, 2, 4, 0]
+
+
+
+1 0 2 3
+1 2 1 0
+1 2 3 2
+9 0 3 3
+8 3 2 3
+14 3 1 1
+5 1 2 0
+1 0 1 3
+1 2 2 1
+12 3 2 3
+8 3 1 3
+14 3 0 0
+5 0 2 2
+8 0 0 0
+4 0 2 0
+1 0 3 3
+1 1 0 1
+9 0 3 3
+8 3 1 3
+14 2 3 2
+1 2 1 3
+1 0 3 1
+3 0 3 0
+8 0 1 0
+14 2 0 2
+1 2 0 1
+1 2 0 0
+1 3 2 3
+13 3 0 3
+8 3 2 3
+14 3 2 2
+5 2 0 1
+1 1 0 3
+1 3 2 2
+1 0 3 0
+14 3 3 0
+8 0 1 0
+14 1 0 1
+1 0 0 0
+1 1 1 2
+14 3 3 0
+8 0 1 0
+14 0 1 1
+5 1 3 0
+1 2 3 1
+1 3 2 3
+13 3 1 1
+8 1 2 1
+8 1 2 1
+14 1 0 0
+5 0 0 3
+1 2 1 1
+1 3 0 0
+11 1 0 0
+8 0 3 0
+14 0 3 3
+5 3 3 2
+1 1 3 3
+1 3 2 0
+13 0 1 0
+8 0 3 0
+14 0 2 2
+1 0 1 3
+1 3 1 1
+8 1 0 0
+4 0 1 0
+14 0 0 3
+8 3 1 3
+14 3 2 2
+5 2 3 1
+1 0 0 0
+1 0 3 3
+1 2 3 2
+12 3 2 0
+8 0 2 0
+8 0 3 0
+14 0 1 1
+5 1 2 2
+1 0 1 1
+1 1 3 0
+1 1 2 3
+4 3 1 3
+8 3 2 3
+8 3 1 3
+14 2 3 2
+5 2 3 3
+1 0 1 2
+1 1 0 1
+8 0 2 1
+8 1 2 1
+14 3 1 3
+5 3 3 0
+1 1 1 3
+1 1 2 1
+8 0 0 2
+4 2 3 2
+8 3 2 3
+8 3 1 3
+14 0 3 0
+5 0 2 1
+1 1 2 0
+1 1 2 3
+14 0 0 3
+8 3 3 3
+14 3 1 1
+5 1 1 0
+8 1 0 2
+4 2 0 2
+1 2 2 3
+1 1 3 1
+15 1 3 1
+8 1 1 1
+8 1 3 1
+14 1 0 0
+5 0 1 1
+1 2 3 2
+8 0 0 0
+4 0 1 0
+5 0 2 3
+8 3 2 3
+8 3 2 3
+14 1 3 1
+5 1 1 2
+1 1 1 3
+1 2 3 0
+1 3 3 1
+13 1 0 3
+8 3 2 3
+8 3 3 3
+14 3 2 2
+5 2 1 3
+1 0 1 1
+1 1 0 0
+1 1 3 2
+4 0 1 1
+8 1 2 1
+8 1 2 1
+14 1 3 3
+1 3 2 2
+1 1 3 1
+1 2 2 0
+11 0 2 2
+8 2 2 2
+8 2 1 2
+14 3 2 3
+5 3 3 0
+1 3 2 2
+1 1 1 3
+14 1 3 1
+8 1 1 1
+14 1 0 0
+5 0 2 2
+1 2 3 1
+8 0 0 0
+4 0 2 0
+6 0 3 1
+8 1 2 1
+14 2 1 2
+5 2 3 1
+1 1 1 0
+1 3 1 3
+1 1 1 2
+10 3 2 2
+8 2 3 2
+14 2 1 1
+1 2 3 3
+8 2 0 2
+4 2 0 2
+1 0 2 0
+1 3 2 0
+8 0 1 0
+14 1 0 1
+5 1 1 0
+1 2 2 2
+1 0 0 3
+8 0 0 1
+4 1 0 1
+12 3 2 3
+8 3 1 3
+14 3 0 0
+5 0 1 1
+1 1 1 3
+1 3 2 2
+1 2 1 0
+15 3 0 2
+8 2 2 2
+14 1 2 1
+8 1 0 2
+4 2 0 2
+1 3 3 0
+8 2 0 3
+4 3 3 3
+2 2 0 3
+8 3 1 3
+14 1 3 1
+5 1 3 0
+8 3 0 1
+4 1 3 1
+1 0 3 3
+1 3 2 1
+8 1 2 1
+8 1 2 1
+14 0 1 0
+5 0 0 3
+8 3 0 0
+4 0 3 0
+1 3 2 2
+1 2 0 1
+11 1 2 1
+8 1 3 1
+14 3 1 3
+5 3 0 1
+1 2 0 0
+1 1 1 3
+1 0 1 2
+6 0 3 3
+8 3 2 3
+14 1 3 1
+5 1 0 3
+1 2 3 1
+1 3 3 0
+1 3 0 2
+11 1 0 0
+8 0 3 0
+14 3 0 3
+5 3 3 0
+1 3 1 1
+1 0 3 3
+0 3 2 1
+8 1 2 1
+14 0 1 0
+5 0 2 1
+8 3 0 0
+4 0 1 0
+8 1 0 3
+4 3 2 3
+1 2 0 3
+8 3 1 3
+14 1 3 1
+1 3 0 3
+1 0 2 2
+1 2 1 0
+1 2 3 0
+8 0 3 0
+14 0 1 1
+5 1 3 2
+1 1 2 0
+1 1 3 3
+1 3 3 1
+4 0 1 3
+8 3 1 3
+14 2 3 2
+8 0 0 0
+4 0 2 0
+8 3 0 1
+4 1 2 1
+1 1 3 3
+15 3 0 1
+8 1 2 1
+8 1 2 1
+14 2 1 2
+5 2 0 1
+1 2 2 3
+1 3 2 2
+11 0 2 0
+8 0 1 0
+8 0 1 0
+14 0 1 1
+5 1 0 3
+1 2 1 1
+1 2 3 0
+2 0 2 1
+8 1 2 1
+14 3 1 3
+5 3 1 2
+1 0 1 3
+1 3 1 1
+9 0 3 3
+8 3 2 3
+8 3 1 3
+14 3 2 2
+5 2 1 0
+1 2 1 2
+1 2 0 3
+1 1 1 1
+15 1 3 3
+8 3 2 3
+14 0 3 0
+5 0 2 3
+1 0 2 2
+1 3 1 0
+1 2 0 1
+8 1 1 1
+8 1 1 1
+14 1 3 3
+5 3 2 1
+1 0 2 3
+1 3 0 2
+1 1 1 0
+0 3 2 3
+8 3 3 3
+14 1 3 1
+5 1 0 3
+1 3 0 0
+1 0 1 1
+10 0 2 2
+8 2 3 2
+14 3 2 3
+5 3 1 2
+1 2 3 0
+8 0 0 3
+4 3 1 3
+1 3 1 1
+4 3 1 1
+8 1 3 1
+14 2 1 2
+5 2 2 0
+1 3 0 2
+1 0 1 3
+1 2 0 1
+0 3 2 3
+8 3 2 3
+14 0 3 0
+5 0 0 1
+1 2 2 0
+1 0 1 3
+0 3 2 2
+8 2 1 2
+14 2 1 1
+1 1 1 3
+1 3 1 0
+1 0 0 2
+2 2 0 2
+8 2 1 2
+14 1 2 1
+1 0 0 3
+1 2 2 2
+7 2 0 0
+8 0 1 0
+14 0 1 1
+1 2 2 3
+1 3 1 0
+1 0 3 2
+0 2 3 2
+8 2 1 2
+14 1 2 1
+1 1 0 0
+1 0 1 2
+0 2 3 0
+8 0 2 0
+14 1 0 1
+5 1 3 2
+8 0 0 0
+4 0 2 0
+1 1 2 1
+1 1 0 3
+15 1 0 3
+8 3 3 3
+8 3 2 3
+14 3 2 2
+5 2 2 3
+1 0 2 1
+1 1 2 2
+1 1 0 0
+4 0 1 0
+8 0 2 0
+14 0 3 3
+5 3 1 1
+1 1 1 0
+1 1 2 3
+14 3 3 2
+8 2 2 2
+14 2 1 1
+1 2 3 2
+14 3 0 3
+8 3 1 3
+14 3 1 1
+5 1 2 3
+8 2 0 2
+4 2 1 2
+1 3 1 1
+1 0 0 0
+10 1 2 2
+8 2 3 2
+8 2 2 2
+14 3 2 3
+5 3 0 2
+8 3 0 3
+4 3 1 3
+1 2 1 0
+1 0 0 1
+14 3 3 0
+8 0 1 0
+14 2 0 2
+5 2 2 1
+1 2 0 2
+1 1 2 0
+1 2 2 3
+15 0 3 2
+8 2 2 2
+8 2 3 2
+14 1 2 1
+1 0 3 2
+1 3 2 0
+2 2 0 3
+8 3 3 3
+14 3 1 1
+5 1 2 2
+1 1 2 1
+8 2 0 0
+4 0 1 0
+1 1 3 3
+1 3 1 1
+8 1 3 1
+14 1 2 2
+5 2 1 1
+8 2 0 3
+4 3 0 3
+8 1 0 0
+4 0 0 0
+8 0 0 2
+4 2 3 2
+1 2 3 2
+8 2 3 2
+14 2 1 1
+1 2 2 0
+1 2 3 2
+12 3 2 2
+8 2 1 2
+14 2 1 1
+1 1 1 0
+1 0 3 2
+8 2 0 3
+4 3 2 3
+8 0 2 3
+8 3 2 3
+14 1 3 1
+5 1 2 3
+1 3 1 2
+1 2 3 1
+11 1 2 0
+8 0 2 0
+8 0 2 0
+14 0 3 3
+5 3 3 0
+1 1 2 3
+1 3 0 1
+1 1 1 2
+14 3 3 2
+8 2 3 2
+14 2 0 0
+5 0 1 3
+1 3 0 0
+1 0 0 2
+1 0 3 1
+2 2 0 2
+8 2 2 2
+14 3 2 3
+5 3 1 0
+1 1 1 3
+1 1 0 2
+8 0 0 1
+4 1 2 1
+14 3 3 3
+8 3 3 3
+14 0 3 0
+5 0 1 2
+1 3 0 0
+8 1 0 1
+4 1 0 1
+8 1 0 3
+4 3 2 3
+1 1 3 0
+8 0 1 0
+8 0 2 0
+14 0 2 2
+1 2 3 0
+1 1 1 3
+6 0 3 1
+8 1 3 1
+14 1 2 2
+5 2 3 1
+8 0 0 2
+4 2 2 2
+6 0 3 3
+8 3 1 3
+14 1 3 1
+1 1 0 0
+1 2 0 3
+5 0 2 0
+8 0 3 0
+8 0 2 0
+14 1 0 1
+5 1 0 3
+1 2 1 1
+1 3 0 0
+11 2 0 2
+8 2 1 2
+14 2 3 3
+5 3 2 1
+1 2 3 0
+1 1 0 3
+1 0 0 2
+15 3 0 0
+8 0 2 0
+8 0 1 0
+14 1 0 1
+5 1 0 3
+1 3 2 2
+1 2 3 1
+8 1 0 0
+4 0 3 0
+10 0 2 2
+8 2 3 2
+8 2 2 2
+14 3 2 3
+5 3 2 0
+1 0 2 3
+1 0 2 1
+8 1 0 2
+4 2 3 2
+0 3 2 3
+8 3 1 3
+14 3 0 0
+8 0 0 1
+4 1 3 1
+1 2 0 2
+1 0 0 3
+12 3 2 1
+8 1 2 1
+14 0 1 0
+1 3 1 2
+8 2 0 1
+4 1 2 1
+11 1 2 2
+8 2 2 2
+14 0 2 0
+5 0 3 2
+1 2 2 3
+1 2 1 0
+3 0 3 1
+8 1 1 1
+14 1 2 2
+5 2 1 3
+1 0 3 2
+1 1 2 0
+8 2 0 1
+4 1 3 1
+4 0 1 2
+8 2 2 2
+8 2 1 2
+14 2 3 3
+5 3 0 2
+1 2 2 0
+1 2 0 3
+1 0 1 1
+1 1 3 0
+8 0 3 0
+14 2 0 2
+5 2 2 3
+1 2 3 1
+1 3 3 2
+1 2 0 0
+11 0 2 1
+8 1 3 1
+8 1 1 1
+14 3 1 3
+5 3 1 0
+1 2 3 1
+1 1 2 3
+1 2 3 1
+8 1 2 1
+14 1 0 0
+8 1 0 1
+4 1 1 1
+1 2 0 3
+15 1 3 1
+8 1 3 1
+14 0 1 0
+5 0 3 1
+8 1 0 3
+4 3 1 3
+1 0 0 0
+8 3 2 2
+8 2 2 2
+14 1 2 1
+8 3 0 2
+4 2 0 2
+1 2 0 3
+1 2 2 0
+3 0 3 3
+8 3 2 3
+8 3 1 3
+14 3 1 1
+1 1 1 0
+1 2 1 2
+8 3 0 3
+4 3 3 3
+5 0 2 3
+8 3 3 3
+14 1 3 1
+5 1 1 0
+1 0 3 3
+1 3 1 1
+12 3 2 2
+8 2 1 2
+14 2 0 0
+5 0 3 2
+1 2 1 0
+1 2 2 3
+8 3 0 1
+4 1 1 1
+3 0 3 0
+8 0 2 0
+14 2 0 2
+5 2 3 1
+1 1 2 2
+8 3 0 3
+4 3 3 3
+8 0 0 0
+4 0 1 0
+10 3 2 0
+8 0 1 0
+8 0 3 0
+14 0 1 1
+5 1 0 2
+1 2 1 1
+1 1 1 0
+8 0 0 3
+4 3 2 3
+15 0 3 3
+8 3 3 3
+14 3 2 2
+5 2 0 3
+1 1 1 1
+1 0 1 2
+8 3 0 0
+4 0 3 0
+2 2 0 2
+8 2 2 2
+8 2 3 2
+14 3 2 3
+1 2 2 2
+11 2 0 2
+8 2 2 2
+14 3 2 3
+5 3 1 1
+1 2 3 0
+1 3 0 2
+1 1 2 3
+2 0 2 3
+8 3 2 3
+14 1 3 1
+5 1 1 3
+1 1 1 1
+1 0 2 0
+8 1 2 2
+8 2 1 2
+14 3 2 3
+5 3 1 2
+1 2 2 0
+1 2 2 3
+3 0 3 1
+8 1 2 1
+14 1 2 2
+5 2 1 0
+1 0 2 2
+8 3 0 1
+4 1 1 1
+0 2 3 3
+8 3 1 3
+14 0 3 0
+5 0 1 2
+1 1 1 3
+1 2 3 0
+8 2 0 1
+4 1 3 1
+7 0 1 0
+8 0 1 0
+14 0 2 2
+1 3 2 0
+8 2 0 1
+4 1 2 1
+11 1 0 0
+8 0 3 0
+14 2 0 2
+5 2 2 3
+1 0 0 2
+8 3 0 0
+4 0 3 0
+13 0 1 2
+8 2 2 2
+14 3 2 3
+5 3 2 2
+1 0 1 3
+8 3 0 0
+4 0 1 0
+1 0 3 1
+4 0 1 0
+8 0 3 0
+14 2 0 2
+5 2 1 3
+1 2 0 2
+1 3 0 0
+8 3 0 1
+4 1 2 1
+7 2 0 2
+8 2 3 2
+14 2 3 3
+5 3 0 1
+8 1 0 0
+4 0 1 0
+1 2 2 2
+8 2 0 3
+4 3 0 3
+12 3 2 2
+8 2 2 2
+8 2 3 2
+14 1 2 1
+5 1 0 2
+8 1 0 1
+4 1 3 1
+4 0 1 3
+8 3 2 3
+14 2 3 2
+5 2 2 3
+1 2 2 1
+8 2 0 0
+4 0 0 0
+1 3 0 2
+1 2 0 2
+8 2 2 2
+14 2 3 3
+1 1 2 0
+8 3 0 2
+4 2 2 2
+5 0 2 1
+8 1 1 1
+8 1 2 1
+14 1 3 3
+5 3 1 1
+1 3 3 0
+1 0 0 3
+12 3 2 0
+8 0 1 0
+14 0 1 1
+8 0 0 3
+4 3 2 3
+1 2 1 0
+1 3 0 2
+3 0 3 0
+8 0 3 0
+14 1 0 1
+5 1 1 0
+1 0 1 2
+1 3 0 3
+1 1 3 1
+8 1 2 3
+8 3 2 3
+8 3 1 3
+14 0 3 0
+5 0 2 1
+1 3 3 2
+1 1 2 3
+1 3 3 0
+10 0 2 0
+8 0 2 0
+14 1 0 1
+5 1 3 2
+1 1 0 1
+1 0 0 3
+8 3 0 0
+4 0 0 0
+1 3 1 3
+8 3 1 3
+14 2 3 2
+8 2 0 3
+4 3 0 3
+1 2 0 0
+15 1 0 1
+8 1 2 1
+14 2 1 2
+5 2 3 1
+1 1 1 3
+1 2 0 2
+1 3 1 0
+7 2 0 3
+8 3 2 3
+8 3 3 3
+14 1 3 1
+5 1 3 0
+1 1 0 1
+1 2 2 3
+1 0 1 2
+8 1 2 2
+8 2 2 2
+14 2 0 0
+1 3 3 1
+1 3 0 2
+1 1 2 3
+4 3 1 1
+8 1 3 1
+8 1 1 1
+14 1 0 0
+5 0 0 3
+1 2 0 1
+1 1 0 0
+8 0 2 0
+8 0 1 0
+14 0 3 3
+5 3 2 2
+1 3 0 1
+1 3 0 3
+1 1 1 0
+4 0 1 0
+8 0 1 0
+14 2 0 2
+1 1 0 1
+1 0 0 3
+1 2 2 0
+15 1 0 0
+8 0 2 0
+14 2 0 2
+5 2 1 3
+1 3 0 2
+1 2 2 1
+1 2 1 0
+11 0 2 0
+8 0 1 0
+14 3 0 3
+5 3 1 0
+1 2 1 2
+1 2 2 3
+1 3 2 1
+7 2 1 2
+8 2 3 2
+8 2 1 2
+14 2 0 0
+5 0 3 3
+8 1 0 1
+4 1 0 1
+1 1 1 0
+1 2 1 2
+5 0 2 2
+8 2 2 2
+8 2 1 2
+14 2 3 3
+5 3 1 0
+1 1 2 3
+1 0 1 2
+1 3 0 1
+8 3 2 3
+8 3 3 3
+14 3 0 0
+5 0 2 2
+1 1 3 0
+1 1 0 3
+1 2 2 1
+14 3 0 0
+8 0 3 0
+14 2 0 2
+1 3 3 1
+1 1 2 0
+1 0 0 3
+4 0 1 0
+8 0 3 0
+14 0 2 2
+5 2 0 0
+1 0 1 2
+8 0 0 3
+4 3 1 3
+8 3 2 1
+8 1 1 1
+14 1 0 0
+1 0 0 1
+1 2 0 3
+1 2 0 2
+9 2 3 2
+8 2 3 2
+14 2 0 0
+5 0 0 1
+1 3 0 0
+1 3 0 2
+1 0 3 3
+0 3 2 0
+8 0 2 0
+8 0 2 0
+14 0 1 1
+5 1 3 2
+1 1 0 0
+8 1 0 1
+4 1 1 1
+1 3 3 3
+14 1 0 0
+8 0 3 0
+14 2 0 2
+5 2 0 1
+1 2 1 2
+1 3 0 0
+1 2 1 3
+7 2 0 0
+8 0 2 0
+14 0 1 1
+5 1 0 2
+1 1 0 3
+1 3 3 1
+1 2 1 0
+15 3 0 0
+8 0 3 0
+8 0 3 0
+14 0 2 2
+5 2 1 3
+1 3 2 2
+1 1 3 1
+1 0 0 0
+8 1 2 1
+8 1 2 1
+14 1 3 3
+8 3 0 0
+4 0 2 0
+1 2 1 2
+8 3 0 1
+4 1 3 1
+7 0 1 2
+8 2 3 2
+14 3 2 3
+5 3 2 0
+8 0 0 3
+4 3 0 3
+1 2 0 2
+8 3 0 1
+4 1 1 1
+12 3 2 2
+8 2 2 2
+14 2 0 0
+1 0 1 1
+1 1 0 3
+1 2 0 2
+4 3 1 2
+8 2 1 2
+8 2 2 2
+14 2 0 0
+5 0 0 3
+8 3 0 2
+4 2 3 2
+1 2 1 0
+2 0 2 0
+8 0 3 0
+14 0 3 3
+1 2 2 0
+2 0 2 2
+8 2 2 2
+8 2 1 2
+14 3 2 3
+5 3 0 1
+1 2 0 3
+1 2 2 2
+9 0 3 3
+8 3 1 3
+14 3 1 1
+5 1 3 3
+1 3 3 1
+1 1 3 2
+10 1 2 2
+8 2 2 2
+8 2 1 2
+14 3 2 3
+5 3 0 0
diff --git a/day16.rb b/day16.rb
new file mode 100644
index 0000000..782e9bd
--- /dev/null
+++ b/day16.rb
@@ -0,0 +1,92 @@
+def op(cmd, regs)
+  regs2 = regs.dup
+
+  case cmd[0]
+  when :addr; regs2[cmd[3]] = regs[cmd[1]] + regs[cmd[2]]
+  when :addi; regs2[cmd[3]] = regs[cmd[1]] + cmd[2]
+  when :mulr; regs2[cmd[3]] = regs[cmd[1]] * regs[cmd[2]]
+  when :muli; regs2[cmd[3]] = regs[cmd[1]] * cmd[2]
+  when :banr; regs2[cmd[3]] = regs[cmd[1]] & regs[cmd[2]]
+  when :bani; regs2[cmd[3]] = regs[cmd[1]] & cmd[2]
+  when :borr; regs2[cmd[3]] = regs[cmd[1]] | regs[cmd[2]]
+  when :bori; regs2[cmd[3]] = regs[cmd[1]] | cmd[2]
+  when :setr; regs2[cmd[3]] = regs[cmd[1]]
+  when :seti; regs2[cmd[3]] = cmd[1]
+  when :gtir; regs2[cmd[3]] = cmd[1] > regs[cmd[2]] ? 1 : 0
+  when :gtri; regs2[cmd[3]] = regs[cmd[1]] > cmd[2] ? 1 : 0
+  when :gtrr; regs2[cmd[3]] = regs[cmd[1]] > regs[cmd[2]] ? 1 : 0
+  when :eqri; regs2[cmd[3]] = regs[cmd[1]] == cmd[2] ? 1 : 0
+  when :eqir; regs2[cmd[3]] = cmd[1] == regs[cmd[2]] ? 1 : 0
+  when :eqrr; regs2[cmd[3]] = regs[cmd[1]] == regs[cmd[2]] ? 1 : 0
+  end
+
+  regs2
+end
+
+OPS = [:addr, :addi, :mulr, :muli, :banr, :bani, :borr, :bori, :setr, :seti,
+ :gtri, :gtir, :gtrr, :eqri, :eqir, :eqrr]
+
+OPS.each { |o|
+  
+  if op([o, 2, 1, 2], [3, 2, 1, 1]) == [3, 2, 2, 1]
+    p o
+  end
+}
+
+p1 = 0
+
+poss = Array.new(16) { OPS }
+
+code = nil
+
+File.read("day16").split("\n\n").each { |samp|
+  if samp =~ /^Before:/
+    x = samp.lines.map { |l| l.scan(/\[.*?\]/) }
+    before = eval(x[0].first)
+    unop, *args = samp.lines[1].split(' ').map(&:to_i)
+    after = eval(x[2].first)
+
+    n = OPS.find_all { |o|
+      op([o, *args], before) == after
+    }
+    
+    poss[unop] &= n
+
+    if n.size >= 3
+      p1 += 1
+    end
+  else
+    code = samp
+  end
+}
+
+p p1
+
+require 'pp'
+
+pp poss
+
+loop {
+  det = poss.find_all { |p| p.size == 1 }.flatten
+  break  if det.size == 16
+  poss.each_index { |i|
+    poss[i] -= det  unless poss[i].size == 1
+  }
+}
+
+poss.map!(&:first)
+
+p poss
+
+regs = [0,0,0,0]
+code.each_line { |l|
+  numop, *args = l.split(' ').map(&:to_i)
+  regs = op([poss[numop], *args], regs)
+}
+p regs[0]
+
+__END__
+
+Before: [3, 2, 1, 1]
+9 2 1 2
+After:  [3, 2, 2, 1]
diff --git a/day18 b/day18
new file mode 100644
index 0000000..3fc46f8
--- /dev/null
+++ b/day18
@@ -0,0 +1,50 @@
+....||.#|..|...|.#..#...|.|.....|.....##|.....||..
+....#.|..|.....#|....|#|##|...#........|...#.#|.#.
+.#||....|...#####..|.|.#..|..|.|..#.|#....#..||#..
+.....|....|..|....#....#..#...||....|.....#.|#..|#
+.|.#||##.|..#....|#.|..|||#..##.|.#.|..##..|...|.|
+.|.|...|...|#.|.....#...#|.#.....#..|#........###.
+......|#|..#....|.#.#|....||#|.|#.....#|..#.#||...
+.|.......##|..|..#|....|.|.|....#..|#|#.#...#.||##
+##|..#.#..#||.###.|......|#.|....#...#.|...#....#|
+..|###|#....#.|.#|#|.....|..|.||#|.|#.||...|##...#
+...#....|.||||.|.|.##...#..|.||.|....#|#|#.|..|||.
+|#....#...##..#||..|..#|.......|#|....|.|.|..|##..
+|#....|.|..|..|..#.#......|..|.|..|||.#||...#.#.||
+...|.|.....#.##|....|..#.|.....||..##..#..|||.....
+.###.#.|.|||#.#.|.|.|...#..###..#|.........|.....#
+|..#..|#..#........#.#.###.#...|.|.....|.||.|.|.||
+|##.|..#..#...#|.........#|...#||.|..#|#.|.|..||..
+....||.|....#.....|......#.|.|#.#.......|.|...#...
+|.#.#|..#|#..#.#......#||.#..|||.#.#..#.||.####.#.
+|.||.|.|.|#|.#.#|.#.|||..|........|..#..|.......|.
+##..|.#..||............|||..#....|.....###|#...|#.
+#|.|..#.|.|......|#|#.||.|....#...#....|...|...|..
+#.#.#...##...#....|#|#||.#|#...|#||#|....|..|...||
+.|.#.|.|...###.|..##..||#..|.....||.|.|....##..#|#
+..#|#|..##...##|..|||||.|....|.#..|...|...#.#|||..
+..|.|....#.##.##|..|#..|...||...|..||##..##...#.##
+..#|###..##....##|.||.|.|.||#...|.#.#|#.##||.|..|.
+...|#...|#..#.....#|.....##..##.......#...##.|...#
+.|..#.##|....#.#.#...|...##........|##|..#.|...|..
+......|#....#.........#.|.....||...#|.|...#.|#....
+..|.#..###||...#|###...|.|...|.|....#...#..|.|.#.|
+.#|....||#.#|..#.#|..##.........|#.|.....#....|||.
+....#.#....#|.|#.#.#.|#............|.#.#....|#...|
+..|#....#|...#.#..#.#.#||..#.#..|......##.#.||....
+..|#....|#..|.#..#....#.|#.||.....#..#.#|.#...|..#
+.#........|||.......|....|||.#|#..#.#|#........||.
+#..|.....#...#..#.|#....##...##.##...#||.........|
+..|.##.|..|...|..#|#.|.........||...##......###.|.
+.|..|...#....||..#....#||#...#.#......##......#|.#
+.|..#......#.|.#.##.|..|...#.|##..|||...|.......#.
+...#..#..|#.|.....#||.|....#...|##|##.....|.#..|..
+#.....#...#...##.|....|......##...|...#.#.#.|.....
+....#..|.|.|###|.##.|.#|.|.||.|#..|#..#...|.##.#..
+..|.|.#.|#.#...##.#||#...#..||.#.|#..|###....|#...
+|.|..........|.#......#..#|.#...#.....#.#.#|.###.|
+#..#|||....#..|....##|...|.#.|##||.|..|.#|.|...|#|
+.|###..#.....|.#.||.#..|#...#.#|.#|.|.##|....#|#..
+.|...#...##......|..#.|#|.#.##......#.|......|...|
+#.#..|#.#...#.|#|....#|##..#....##|..#.|..|#...|..
+.#.#..|.#..#........##.|#..|##||......|..#...#....
diff --git a/day18.rb b/day18.rb
new file mode 100644
index 0000000..a9f0967
--- /dev/null
+++ b/day18.rb
@@ -0,0 +1,95 @@
+d = ["\n", *File.readlines("day18").map { |x| " " + x }, "\n"]
+
+
+=begin
+    An open acre will become filled with trees if three or more adjacent acres contained trees. Otherwise, nothing happens.
+    An acre filled with trees will become a lumberyard if three or more adjacent acres were lumberyards. Otherwise, nothing happens.
+    An acre containing a lumberyard will remain a lumberyard if it was adjacent to at least one other lumberyard and at least one acre containing trees. Otherwise, it becomes open.
+=end
+
+
+xd = <<EOF.lines.to_a
+
+ .#.#...|#.
+ .....#|##|
+ .|..|...#.
+ ..|#.....#
+ #.#|||#|#|
+ ...#.||...
+ .|....|...
+ ||...#|.#|
+ |.||||..|.
+ ...#.|..|.
+
+EOF
+
+require 'pp'
+
+seen = []
+
+p1 = 0
+
+i = 0
+d2 = nil
+1000.times { |i|
+pp d
+
+d2 = d.map(&:clone)
+
+d.each_index { |i|
+  d[i].chars.each_index { |j|
+    case d[i][j]
+    when '.'
+      if [d[i-1][j-1], d[i-1][j], d[i-1][j+1],
+          d[i  ][j-1],            d[i  ][j+1],
+          d[i+1][j-1], d[i+1][j], d[i+1][j+1]].count('|') >= 3
+        d2[i][j] = '|'
+      end
+    when '|'
+      if [d[i-1][j-1], d[i-1][j], d[i-1][j+1],
+          d[i  ][j-1],            d[i  ][j+1],
+          d[i+1][j-1], d[i+1][j], d[i+1][j+1]].count('#') >= 3
+        d2[i][j] = '#'
+      end
+    when '#'
+      s = [d[i-1][j-1], d[i-1][j], d[i-1][j+1], :X,
+           d[i  ][j-1],            d[i  ][j+1], :Y,
+           d[i+1][j-1], d[i+1][j], d[i+1][j+1]]
+      if s.include?('#') && s.include?('|')
+        # keep
+      else
+        d2[i][j] = '.'
+      end
+    end
+  }
+}
+
+if seen.include? d2
+  p [:cycle, i, seen.size - seen.index(d2)]
+  break
+else
+  seen << d2
+end
+
+if i == 10
+  r = d.join
+  p1 = r.count('#') * r.count('|')   # 535522
+end
+
+d = d2
+r = d.join
+}
+
+
+p p1
+
+n = (1000000000-i)%(seen.size - seen.index(d2))
+
+p seen.map { |s|
+r = s.join
+p2 = r.count('#') * r.count('|')
+}.index(210160)
+
+#p p2
+
+# 210160
diff --git a/day19 b/day19
new file mode 100644
index 0000000..3a7db07
--- /dev/null
+++ b/day19
@@ -0,0 +1,37 @@
+#ip 4
+addi 4 16 4
+seti 1 9 5
+seti 1 5 2
+mulr 5 2 1
+eqrr 1 3 1
+addr 1 4 4
+addi 4 1 4
+addr 5 0 0
+addi 2 1 2
+gtrr 2 3 1
+addr 4 1 4
+seti 2 6 4
+addi 5 1 5
+gtrr 5 3 1
+addr 1 4 4
+seti 1 2 4
+mulr 4 4 4
+addi 3 2 3
+mulr 3 3 3
+mulr 4 3 3
+muli 3 11 3
+addi 1 5 1
+mulr 1 4 1
+addi 1 2 1
+addr 3 1 3
+addr 4 0 4
+seti 0 2 4
+setr 4 8 1
+mulr 1 4 1
+addr 4 1 1
+mulr 4 1 1
+muli 1 14 1
+mulr 1 4 1
+addr 3 1 3
+seti 0 0 0
+seti 0 2 4
diff --git a/day19.rb b/day19.rb
new file mode 100644
index 0000000..ec3e2ff
--- /dev/null
+++ b/day19.rb
@@ -0,0 +1,86 @@
+insn = [:eqri, :seti, :eqir, :eqrr, :addi, :setr, :gtrr, :gtir, :muli, :bori, :bani, :borr, :gtri, :banr, :addr, :mulr]
+
+def op(cmd, regs)
+  regs2 = regs.dup
+
+  case cmd[0]
+  when :addr; regs2[cmd[3]] = regs[cmd[1]] + regs[cmd[2]]
+  when :addi; regs2[cmd[3]] = regs[cmd[1]] + cmd[2]
+  when :mulr; regs2[cmd[3]] = regs[cmd[1]] * regs[cmd[2]]
+  when :muli; regs2[cmd[3]] = regs[cmd[1]] * cmd[2]
+  when :banr; regs2[cmd[3]] = regs[cmd[1]] & regs[cmd[2]]
+  when :bani; regs2[cmd[3]] = regs[cmd[1]] & cmd[2]
+  when :borr; regs2[cmd[3]] = regs[cmd[1]] | regs[cmd[2]]
+  when :bori; regs2[cmd[3]] = regs[cmd[1]] | cmd[2]
+  when :setr; regs2[cmd[3]] = regs[cmd[1]]
+  when :seti; regs2[cmd[3]] = cmd[1]
+  when :gtir; regs2[cmd[3]] = cmd[1] > regs[cmd[2]] ? 1 : 0
+  when :gtri; regs2[cmd[3]] = regs[cmd[1]] > cmd[2] ? 1 : 0
+  when :gtrr; regs2[cmd[3]] = regs[cmd[1]] > regs[cmd[2]] ? 1 : 0
+  when :eqri; regs2[cmd[3]] = regs[cmd[1]] == cmd[2] ? 1 : 0
+  when :eqir; regs2[cmd[3]] = cmd[1] == regs[cmd[2]] ? 1 : 0
+  when :eqrr; regs2[cmd[3]] = regs[cmd[1]] == regs[cmd[2]] ? 1 : 0
+  end
+
+  regs2
+end
+
+
+r0 = 0
+r3=10551348
+
+f = [1,
+ 2,
+ 3,
+ 4,
+ 6,
+ 9,
+ 12,
+ 18,
+ 36,
+ 293093,
+ 586186,
+ 879279,
+ 1172372,
+ 1758558,
+ 2637837,
+ 3517116,
+ 5275674,
+ 10551348]
+
+f.each { |r1|
+  f.each { |r5|
+    if r1*r5 == r3
+      r0 += r1
+    end
+  }
+}
+
+p r0
+
+
+rip, *program = File.readlines("day19")
+
+rip = rip.scan(/\d/)[0].to_i
+
+program.map! { |line|
+  o,a,b,c = line.split
+  [o.to_sym, a.to_i, b.to_i, c.to_i]
+}
+
+regs = [0]*6
+regs[0] = 1
+ip = 0
+
+loop {
+  break  if ip < 0 || ip > program.size
+
+  regs[rip] = ip
+  p regs
+  regs = op(program[ip], regs)
+  ip = regs[rip] + 1
+}
+
+p regs.first  # 2240
+
+# 10844452 too low
diff --git a/day20 b/day20
new file mode 100644
index 0000000..10e6b40
--- /dev/null
+++ b/day20
@@ -0,0 +1 @@
+^WSSSWNNWNENWNNWWNNWWSWNNENENWNENNWNWWNENNENNNWWWSWSEE(ENWESW|)SSWWN(E|WSWNWSWSWNWNNWSSSWSWSEEESSWWWWSSSENNEEESWSW(N|SSSESWWWSESSSEENNEEEESEESEEENNWNNWWSS(E(SEWN|)N|WNWNNE(NWWNENEENNNWSWS(E|WW(NNE(S|ENNN(WSSWNNW(N|W)|NEESWSES(W|ENE(NNWSNESS|)SEE(NWES|)(SSSWSWSW(SES(WWNNWESSEE|)E(NN|SSESESSSEEESE(NNWNWW(SEWN|)NEENNWSWNW(S|N(WS|EN))|EEEENWNEN(W|ENNW(S|WWNNEENENWNWWWWW(SSENES(ENESNWSW|)SS|NW(SWEN|)NENWNENWNENWNEEENWWWW(NNNESES(ENESESENESSEENNEENNNWWNNESENNNNEEENNNWSSWWWWWSSS(ENNESS|SWSSE(SES(ENSW|)W(SS|WWWNNWNNNWNEEEE(NWNWSWWNWWWNNNWWNWWNEEENNNEENWNNESESSESSENESSSEENESENESSWSS(ENEE(SWEN|)NWNENESSEEESWSSENENNEENESESWSWW(NEWS|)SWSEEESSESWWNNWWSSSE(NN|SSWWSEESWWWSSSSSSWWSSWNNWNWNWSSWSEE(N|ESSSENEEENN(WSNE|)ENNENWNNNESSENNESESWSSW(N|SEENEEENWW(W|NNNWNENWW(S|NENN(WSNE|)EENNENNENEEENWNWWS(WW(NENNNENNNWSSWNWWWWSWWNENWWSWWS(EESEES(WWWNSEEE|)ENEEE(NWWEES|)SE(S|N)|WW(S|NWNWNWWWWW(NENWNEENWNNEENNWNWNEEEEESWW(W|SEEEENNNW(WWWWNWNNWNENENWWWWWSSWSEEE(NWNEEWWSES|)SSS(SSWWNWSWNNWWWNEENE(SEEN(W|ESS(WW|S))|NWWWWS(WSESSEEESWSWSSENENESSSESS(ENNENE(NN(ESEWNW|)WSWNWSSE(WNNESEWNWSSE|)|SSWSS(SS|W))|WWSWSS(ENSW|)SSWWS(WSSWSSESWWWNNNWNENNWNENNNNWNEESEEEE(NE(S|E(E|N(WWWWW(SEEWWN|)WNEEENWWNEEN(WNWSWWWNWSWWNENENWWWNWSWNWNENEES(W|EEES(WW|EENENNN(ESSE(SWSSW(WWSEE(SWEN|)EE|N)|EENEEE(SWWEEN|)N(ESNW|)WWWWWSE(WNEEEEWWWWSE|))|WSSW(WNN(ESNW|)WSW(SEWN|)WWWN(EEE|WWWSWNWWSWWSEESSSEEENE(SESSEESE(NN(WW|E)|SSENEEESWSS(ENE(NENWESWS|)S|WN(N|WWWWWSWNWWWNNEENE(NWN(E|WSWS(E|WWSSWWNWSSSSWWNWWWNENWWWNNWSWSESSEE(NWES|)SESWWWWWNE(EE|NWWWNEE(NWWNWWSESSWSWNN(E|NNWWSWSESE(NN|SWSEESWWSEESEENESSESSSWWNENWNWSSWWWWNNEE(S(ENSW|)W|NWWWNWNW(SSSE(ESSWSSSENNEEESSWSESWWWSEEEEENESENNWWNEEESEEESSSENESSWWWNWW(NEENWW|SSWNWSSEEEEN(WNSE|)EEEEESEENNEEESSSSSWSESWWWNWSWWWSEESWWWWNNWNWNNN(WSSSSSSWWSSSESWWNWSWWSSWNNWSSWNW(SSSESWSEENNEEEESSWWW(NEEWWS|)SESSWNWNWWSSE(ESWSW(SSSSSENENENWN(WSSNNE|)NENESEENWNNNEESS(WNSE|)SSSWWSESWW(NNWESS|)SESWSWSWN(NENSWS|)WSW(N|SSENESESWSWW(NEWS|)SEESWSW(N|SEESSESESSSENNNNWNWNN(W|NNEEESWSS(WNNSSE|)SEEEESSENNENNNENWWNEENNENENNENWNENEESSESSWNW(SWSSWSSENENNEEESEEEESWWWSSSSSESSWSWSWWNENNE(E|S|NNNNWSSSWSWWNENWWSWW(SSSSW(WSWNWWW(NEENWW|SEESEESEEESWSEEEESSSWNWSWSWSSSSESENEESSEENENWNEENNNWNNESESEENESSSSSEESESENNENENNNNWWWNWNNWNNWWWSESE(SS(E(SESEEESSWWS(S|E|WNW(S|N(N|EEE)))|N)|WNWW(SESNWN|)WNE(E|NWWWW(NWNWW(SSE(N|E)|WN(WSWNSENE|)NENN(EE(SSS(EEESS(WNWESE|)EENWNNENESS(SEEENESEEENWNENEESEEESSWNWWSESWSESSWWS(WWNENE(E|NN(NNN|WWWWSEE(SWSNEN|)E))|ESENEENNEENNNNNNEESEENENNEEESEEEEENWNENNEEEENWWNENEENEEENWNWWNNWWN(WWWSESWWNNWSWSWSWWSEESWWWWWNNWWNEENENENWN(WWSWNN(WNWSW(SSWNWWWNWNENWWNNE(S|NENWWSWWWSWNWNEENWWNWSSSWNWSSWNNWSWNNNWSWSESWWWWWSWNWWW(SSSSSSWSSSW(N|SESWW(N|SEESSENES(EENNNE(NE(NNNENWWWWSESE(SWWNWW(NENNEEEENNESES(SEEEEESWS(WNSE|)ESWSEESW(SEENNENESSWSESESWSESWWSSW(NW(S|NNE(S|E))|SEEENEEEESWSES(WWWWSES(WWNNN(EENESNWSWW|)WWSESSSE(WNNNWNSESSSE|)|E(NEWS|)S)|ENESENNWNENNNESENNNWNWNWSSWSWNWSSSS(WNNW(SSWWSNEENN|)NNNWNNNESENNNWNNNWSSSS(E|WWNENNWSWNW(NWNWWSES(E|WWWNENWNEEN(WWWS(S|WNWSWWWNWSSSEEN(ESNW|)W)|ESEESEES(ENN(WN(WSNE|)E|EEENESSSW(NWWEES|)SES(E(SE(SSWNW(SSSW(W|S(EENNE(SS|ENNNESE(SS(WNSE|)EEEE(SSSEE(NWES|)SESWWNWSWNNW(SSSSWWSESENESENNESENN(WWWSNEEE|)EEEEENWWN(WSNE|)EEESSESSSW(SEENNENWNENWNW(NEENEN(WW(WSEWNE|)N|EEN(N|EESWSE(EE|SWWW(NEWS|)WS(SE(SW|NE)|W))))|S)|WNWSWWNW(NEE(EEESNWWW|)S|SWSW(S(E(ENSW|)S|WNWSWS(SSSSWS(E|W(N|SS))|WNW(SWEN|)N(N|EE)))|N)))|NWN(EESNWW|)W)|NN(W(NNES|SWNWS)|ESENEN))|N))|SS))|N)|N)|NN)|W))|W)))|SSESWSE(WNENWNSESWSE|)))|ENNESS(SS|ENNNE(N|E)))))|W)|W)|SSSEN(N|E(E|SS(S|WW))))|N)|S)|S)|SSSWW(NN(ESNW|)WNNWSSW(W|NNN(W|N))|SWSEENESENN(SSWNWSNESENN|)))))|NEENWWNW(NWNW(SWWWWEEEEN|)NEESENEEEEESWSEENNNEEEEEEESWSSEE(EEEES(ENESENNWWWNNWSWS(WW(NENWNWNEESE(NENWWWWWSWNNW(NEESEEN(ESENNNENEEEEESSWSWNN(WWSESSEEESWSWNWW(NNW(N|S)|SS(E(SSEEE(SSSS(WWSWN|EESS)|NN(WSWNSENE|)NE(SSEEEWWWNN|)NNE(ENWW(NNNNNENWNWWNWNWSSESWWNWNNNNNWSWWNWWNWWWWSWW(NWWNEEE(S|ENWWNWWNW(NEENWNEEEEN(EESENN(WWNEWSEE|)ESENESSSEEENNWW(SEWN|)NEEESENESEENN(ESSSSWWN(E|WSWW(NEWS|)SSWSWWNN(WWSWNN(NESNWS|)WWW(N|WWWSS(ENESS(W|ENEE(NWWEES|)SESS(WWWNE(E|N)|ESENES(ENEES(SSEENWNNESESEESWWS(WWWSSNNEEE|)SENESEESS(WNWWEESE|)EESESWWSEESENNEEESS(ENENESEEEENEN(NNWSWS(WW(SEEWWN|)NENN(NNNWSSWW(NNE(NWWEES|)S|SEESWSWWS(S|WWWNW(S|WNENWNE(NWNENWNWSWWSW(SEES(WW|SSENNNNW(ESSSSWENNNNW|))|NWNW(S|NNNEESEEEE(SWWWS(WNWNSESE|)E|NWWWNW(WWWWWSSES(E(NNWESS|)S|WW(WWWWN(WSNE|)N|N))|NEEEE(SWWEEN|)NN(ESSNNW|)WWWS(EE|WNNEEEN(ESNW|)WNWW(SEWN|)W))|E)))|EESEE(NWES|)S(WW(SE|WN)|E)))|EE))|E(S|EE))|E)|ESSWSEE(WWNENNSSWSEE|))|SSWWWW(SEWN|)N(EEENWNE(WSESWWEENWNE|)|WWWSWNNE(N(NNEWSS|)W|EE)))|W)|S)))|W))|E(S|E)))|W(S|WNWWS(WWNN(E(S|NN)|WSW(SEWN|)N)|E)))|WWWWWSW(SEWN|)NWNN(ESNW|)WSWS(S|E))|SS(EE|S(S|WWWWW(NEWS|)SSS))))|SEESESS(WNSE|)E(NENN(W(S|N(WSNE|)E)|ESE(ES(EE(NWES|)SWSESESWS(W(NN|S(SS|E))|EEEEN(WW|ENESSW))|WW)|N))|S))|W)|S))|N)|W))|E)|W)|SSS(EE|WNNWWWWSWNW(NENWNSESWS|)WS(WNSE|)ESWSEENE(S|EEN(ESNW|)W)))|S)|W)|E)|W)|SWS(WWN(NWNN(ESNW|)WWWSSS(ENENWESWSW|)SSWNWN(WW(NNWSSWN(N|W)|SSE(E|N))|E)|E)|E))|SS)))|N)|E)|EEE(SEE(E|SWWS(E|W(WS(SW(SEWN|)N|EE)|NN)))|NN))|EENEEEENENNESESSENESEENNW(WWNWNENESES(W|EESSESESWW(N|WWSSWSWSSWWSSSWWWWSESSWNWNW(SWSSSSWWW(SWNWWSESWSSSSSSSSEEESENNWNEEEESESWSSSSENENN(WSNE|)NEESESWSW(NN|SWSSSESWSWNWNENWN(E|WSWSSWWNWNWWWNNWWSSSWWWSSSWNWNWSWWWWNNEES(ENNWWWNNWNNNWSSSW(NNNNEEESESWSEENESSS(WNWSNESE|)ESEE(EEENWNWWNEENWNNNNNESEEENE(SSWWSSENESSWS(EENESSENEN(WNWWEESE|)ESSS(ENNE(NNW(NNESNWSS|)S|S)|S(WN(WWWNSEEE|)N|S))|WW(S|N(NNW(NEWS|)S|E)))|NNNWNWSSESWW(SEWN|)NWWNWSWSWSESSSSS(ENNNNNNEE(WWSSSSNNNNEE|)|SW(SESEEWWNWN|)NNNWNN(ESNW|)N(WSSS(SEWN|)WN(WW|NN)|NNENNW(N(EES(S|ENESENN(NNESSS(SSWENN|)ENESE(NNWWEESS|)S|W))|N)|S))))|S(S|WW))|SSSSSWWSEESWSSEEN(NNNNE(SSEESSENNESESWSESENNN(NWES|)EESENEENWNN(WSSNNE|)ESESSSWWSWSWNW(SSEEENENEESENNESSSWSWSWSEES(WWWWNWWS(WWNENN(WNWWNWNWWSW(NNNESNWSSS|)WSWNWSWNWWSWWWSEEEE(SSEES(EEEEEEENE(S|N(E|WWSWNNWN(WSWWS(WNWSNESE|)ES(ENESNWSW|)W|E(ESEEWWNW|)N)))|WWWNWN(E|WWWNWWWSSS(WNNNWSSWS(WWNNE(S|NWWWNWSWSWWWWWSEES(EEN(ESEEENWWNEE(WWSEESNWWNEE|)|W)|WWWWNNE(NNEENNWWNWWSSWSSWW(SESEE(SWWWNSEEEN|)N(W|NNE(S|N(EE|N)))|NENNW(S|NNEE(S(S|W)|NENWWNW(SSEWNN|)NENNW(NEESESSES(WWNNSSEE|)EENNNNWNWS(WNWNNWSW(SEWN|)NNNNNNESENNNNNE(NWNWW(NNESNWSS|)SSSSE(SWEN|)NNN|SSEEEE(NWES|)SESSWWWWSSESWSEES(WWWNNWWNNEE(SWEN|)NNNESEE(NWES|)E|SENEENNNWWS(SENSWN|)WNN(W|EEENESSE(SWSSSSE(SESWSSWWWSSWWWS(W(W|NNEEENNNESENN(ESSNNW|)NW(NE|WSE))|ESEEN(W|ENNEEEENN(WSNE|)EE(SSEEEENWN(WSWNSENE|)EESSSENNENENN(EESESSSEE(NEN(WWSNEE|)NNE(SSS|N)|SSESSWNWWS(E|WS(E|WNNNWSWSWSS(EEN(N|W)|WNNNEN(ENNESENN(W|N(N|ESSSS(EENWESWW|)S))|WWSWSESSWNWNNNN(E(E|S)|WSWSESWWS(SENESESS(NNWNWSNESESS|)|WWNNE(S|NE(N(NN|WWWWSE(SWWSWSESWS(EENENWNE(WSESWSNENWNE|)|WW)|E)|E)|S)))))))))|NNWW(SSW(S(W|E(ENNSSW|)S)|N)|NNESEN))|N(N|WW))))|NNN)|ENN(E(EE|S)|W(S|NNWW(SE|NW)))))))|SES(S|W))|S))))|S)))|E)|EEEEN(ESE|WWWNE))))|N)|ESENEE(EN(N|E|W)|S(S|W)))|E)|ENN(NEESESWW(N|SEEENNESES(W|EEEEEENNNWSWNWSWNWNEEEENEEEEESSWSWSS(ENESENESEEENENEENEEENNESESENESSWSES(WWNWN(WSS(WWWW(NEENES|W)|E)|N|E)|ENNEENWWNENWWNENNNESENNWWWNWSSWSSE(SSWNWWWWSS(ENSW|)WNNWNWSWNNWSWNNWNENESES(W|EENWNWNENNNWNENESESENESSWWSW(NN|SES(W|SEENEES(SW(N|WSS(ENESNWSW|)WNW(NEWS|)(S|WW))|ENNNWSWN(NENNEESWSEESS(WNSE|)ESENENESS(EEESWSSSENESSEEESENNENENNWSWWNNNWNNWNEENNNWWSWS(EENSWW|)SWWSESWW(NWWNWSW(SEWN|)NWNENEENEESS(SWN(N|WW)|EENNENEENWNWSWSW(SS|NNENWNWSWSSE(SWWNNNNWSSWNNWNWSSWWSSWWNENNWWS(SSSSES(WWNWWWNWWNWNWWWSSSWSWW(SWSWSS(WNSE|)SENNEEESEENWNEEEENE(SSWWSES(ENENSWSW|)WSWN(WWWSSESEN(NWES|)ESSWSS(ESESWSES(ENENWNE(NWWN(W|N)|EEESWWS(SWSWENEN|)EE)|WW)|WNNWSWWNEN(NNW(NENWESWS|)SSWNNWSSSESWS(EEEE|SWNWSWWNENWWWWWW(NEEENWN(EE(NN|SSEEEE(SWEN|)N(WWWNSEEE|)N)|WSWWWNW(NEN(ESSENSWNNW|)WW(S|NN)|SS(S|EE)))|SEESWS(WNSE|)EES(EE(SESEEEE(WWWWNWESEEEE|)|NWNWNE)|W)))|E))|NN)|N(WWSWNNE(EE|NWNWSSSWS(WSW(W|N)|E))|E))|NENENNWWNNNESEEENNWNNNWNWSWNNNEENNNNNESSEEESENEENESEEEESEEEENWWWNWWWWNEENWWNENWNWWSESSWNWWNNWNN(WSSSESWSW(SSEEN(W|ESEN(NWWEES|)EE)|W(WWSSSSWNWWSSSE(SWSSSSSSE(SWWWNWWWNWWNWN(WSSESESE(S(WWWN(W(SSESWENWNN|)N(NN|E)|E)|ENESE(N|SEEES(WW|E(SENE|NNWWW))))|N)|EEN(W|ESES(WW|ENNWNNNNESEESSSSSS(W(NNNNNWS(NESSSSNNNNWS|)|WW)|S))))|NEEE(SEWN|)NWWWN(NN|EEE))|N(EE|N))|NNE(N|S)))|ESE(SS|EN(NNEENESSWSW(SEEES(SEEENWNNNWNNW(SSS(ESSNNW|)W|NNWWNENWNWSWSSWNNNNNWWWSSS(WNNWNENWNNEES(ENNESENNN(ESSEESEEENESENNWWNEEESSEESSSWNW(NEWS|)WWWSWWSWWS(EESEENN(WSNE|)EEE(NWWEES|)SSSWSESEEEENWWWNNENEN(WWSNEE|)EENWNW(S|NNENNWNWNNWSWNNNNNENNNNNWSWNNWWN(WWSSWW(NENSWS|)SWSSWS(WNSE|)SSEENENW(WSNE|)NNEES(SSSSESENNNW(S|NNEEEN(WNWW(SEWN|)(N(EE|N)|WW)|ESSWW(W|SESWSSE(N|SSWWN(E|WWSWSSEE(SSWNWWNNNNWNN(WSSNNE|)ESE(NN|S|E)|N(W|EEEEESSE(N|E)|N)))))))|W)|NNENWNNNWWW(SS(ENESS|WN)|NENNESSENNENWWWW(SS|WWWWS(E|WNWSWNNNWWWNWWNNEEES(SEEENWNEESEEESESES(WWNWSWWN(WSNE|)EN(E|W)|ENNWNWNNWNWSW(SEEWWN|)NNWWNWWSWWSWNNENNWNNWWNWNWNN(EES(W|SEENN(WSNE|)EEESWWSEESEEENNWN(WSSEWNNE|)EESEEN(W|EESESEESEESSWNWSWSSWWSWNNEENNENWWWSESWWNWW(WWWSSENESS(ES(ESE(EEESW(W|SSENENNEN(NESSSSW(SESWSEENNNESEENENWW(WNW(NENWN(ENENENESENNWNWSWW(WNN(WS(S|WNW(S|W))|ESENEEEES(ENESENESENESSEENWNEEEEESENEEESSWW(NEWS|)SEEE(NNN|SWWWSESENESSSSSWSWWNENWNWWNEN(ESEES(S|W)|NNWNENWWNWSW(N|SEESSS(ENSW|)SWNWSWWSEEESWSSSSESESEESENEESSW(N|WWSWSSENENEEE(SWWSESWSWN(WSWSEEESSENE(NN(WSNE|)NN|SSWSWWSWNNE(E|NWN(WWNNN(E|NNWWNNWNWSSWSSSESSWNWNNWWWWNWNNWWSWSWSSEESEEN(EESENESSWWW(WSSWWNN(ESNW|)WWSESWSWW(NNNNNE(S(EE|SSS)|NNW(NEENENEENEES(ESENESSE(NNNE(SS|EEE(NWWNWWS(WNWWS(WNNNENEENWNENENWNNEEEE(S(ENESNWSW|)WW(S(SSWSESSW(N|WS(EEEE(NWNENW|S)|W(W|N)))|EE)|W)|NWWWNWWWWWSEEE(SWWWSEESS(ENNSSW|)WSESWWW(WNENWNN(ESE(E|SS)|WSSSW(SEWN|)NN)|SE(SSW(SESWWN(N|WWWSES(E(E|N)|SWNWWWS(EESEWNWW|)WNNN(N|W)))|N)|E))|E))|ES(W|E))|E)|ES(W|ES(SWN|EN))))|SWWWN(WNSE|)E)|W)|WS(E|SSS)))|S(WNSE|)ESEESENENWW(NEEEESSSW(NN|SEESWWSEEEESESWWWWWN(WSWNNW(NEE(S|N(WW|N))|SSSEEESWSESWW(NNWSWNN(SSENESNWSWNN|)|SESEEN(NNNESENEEEESSSESWWWNNW(NEESSNNWWS|)SWSW(NNEWSS|)SWSEESESSEENWNNWN(W|N|EESENESESSSSESWWNW(WWWSWSWSSWW(SEEEENN(WSNE|)EESSW(SWWSESWSESWSWNWWNWNWSSWWSWS(WNNNWNEEES(WSNE|)ENN(WWWWN(NW(SS|WNEENNES(NWSSWWEENNES|))|E)|EEESENE(NWW|SSW))|SEESENNEN(WWSWENEE|)(ESE(N|ESWSWSESWWSWNN(ENNEWSSW|)WSWSS(WWNWWNEN(ESE(NNESNWSS|)S|WW)|E(EEESESEEEEESWWSWSWNWN(EE|WWSESESWWWWSESESEENN(W(S|W)|EESEESESEEESWSEESEEEEEEE(SWSESWWNNWSSSWWWNNEN(ESSWENNW|)WWSSW(WNENWN(E|W(S|WWNN(ESENSWNW|)W(S|WNW(N(EESEWNWW|)N|WS(WNWSWNNWWWWWSWS(WWWNENWWSWNWNENNNENWWN(EN(ESESENE(NWWEES|)SEEESSSS(EE(E|NWNNE(ENN(E(SSEWNN|)NN(WS|ESE)|WSWNWWW(EEESENSWNWWW|))|S))|WWW(WWNN(WSSNNE|)EN(EESWS(EENNSSWW|)W|W)|S(S|E)))|W)|WWSESWSSSWNNNWW(WW|NEENNWSWN(SENESSNNWSWN|)|SESSSEESE(NNNEN(N|W)|ESWSS(WNNW(SSWWWW|N)|ES(SEESENE(S|NNWSWWNEN(NWSWENES|)EE)|W)))))|EESENN(EE|W))|E|S)))))|SSSSEEENEN(WWW(SEWN|)N|EESESWW(WSEESWWSSSSSW(SWSWSESWSSSS(WNWNWNEE(NWWNWWSSWNNNWSWNNNW(NENWESWS|)SSSS(SENESSESENE(SS(E(N|E)|WWWWN(NWSWWSEE(WWNEENSWWSEE|)|E))|NN)|WNNWNE)|S)|EEENEENWWWN(WSSEWNNE|)ENEES(ESE(SSW(N|WW)|NNNW(WNEENWWW(SW(N|WS(EE|S))|NENEE(SWEN|)NNWN(ENWNENNNNW(W|S)|WWSES(WSNE|)E))|S))|W))|NNNNNWWW(WNEEEE|SS(EENWESWW|)S))|N)))|NNNWNENNNWWNNESENNNNNNWSSWNNWWSWSSSSWWSSWWNNW(SSWNW(NEWS|)SS(EES(W|ENESS(WW|ESSEENNEEE(SSESWWNNWSSWW(EENNESNWSSWW|)|NWWNWW(NEEE(SEESNWWN|)NNNW(SSWWEENN|)NNE(SESENSWNWN|)N|WSE(SS|E)))))|WN(N|WW))|NNENEESS(ENNNWWWWNWWNENNNNEESWSSSEES(EENWNNENWNW(SSWSEWNENN|)NWNNWNWW(SSE(N|ESWWSW(SW(SSE(SSWSW(WN(EN(E|NN)|W)|SEENEES(E|W))|EN(W|N))|N)|N))|NEEEENWW(W|NNESENNWN(EESEESSSSWNNW(NEWS|)SSSESWS(WNNWESSE|)SEES(W|SSS(W|S(S|EEEENNE(NNNWSSWSWS(E|WNNENNNE(EENWWWWW(NEENNNW(NNESEENE(SSSSWW(SEE|NENW)|NWW(WNENEE(SWEN|)NWNWNWNNNWNWNWSWNNNNWW(SSE(N|S(W|SSES(W|ESWSSSESEE(SSWWNE|EN(NWW(SEWN|)WNENE(NWNWESES|)S|E)))))|NEEESENESSEEESE(SSSWNNWW(N(E|W(WNWSNESE|)S)|SESSSENESS(W|S))|NNNWWW(SEEWWN|)NENNESSENNNWWWN(ENEE(SWEN|)N|WWSSWNNNNE(S|NNWWNNNWW(NN(EESWENWW|)N(WSNE|)N|SSSWWSESSWSSESWS(ES(WSS(ENSW|)WWWWW|EENWNEE(SSENEE(SWEN|)N(ESNW|)N|NNWW(SEWN|)(W|NNEN(NNN|W|E(SSWENN|)E))))|WNWWNEENNN(E|NWWNEN(E(N|EE|S)|WWS(WNSE|)SSSSENNESS(NNWSSWENNESS|)))))))))|S))|SS)|S(ESSNNW|)W)|SS))|SS))))|W(NWWS(E|W)|S))))|W)|W(SS|N|W))))))|N)))|N))|N)|NEN(NNE(S|ENWN(E|NWSW(SEWN|)(W|NNN)))|WWSWS(E|W)))|NNN(ESSNNW|)W))|W)))|EEE))|W))|N)|WN(E|W(NENSWS|)W)))|E)))|N)|NNNNWNWWS(E|WNN(EEEE(S|N)|NWNENWW(SWSES(W|SE(S|N))|N))))))))|W))|S(E|S))|WW)|S)|S)|N)|WW))|NNNW(WNEWSE|)S)|W)|WWWW(S|NNWNE(ESS|NWWW)))|NEEN(WW|E(E|N)))))|WSW(N|SWSEE(N|SW(SEEE(NWNSES|)EESS(E|SSSS(EEEE(N(E(N|ES(ENSW|)W)|W)|SS)|WWWN(WWSESEEESWWWSSWNW(SWSEEEEEEN(NWWSEWNEES|)ESSE(SWW(S|WN(W|E))|EN(WN|EESW))|NN(ESNW|)W)|EE)))|W)))))|WW))))))|W(S|NNEEN(EE|WNWSWWS(WW|E))))|WSWWSWNW(N|SWSSWSSWSWSSS(WWNWSW(SSS(WNSE|)EENENWWS(NEESWSNENWWS|)|NNENW(WSWWEENE|)NEN(EES(ENENWESWSW|)SW(SESNWN|)N|NNNWWWNWNENENN(EENEN(ESESE(SWW(WNE|SEE)|NNNW(NW(NEEE(SWEN|)NNE(SEWN|)NNNW(NEWS|)WWWSSESWSEENNENWW(EESWSSNNENWW|)|S)|S))|W)|WSWWS(WNW(SSEESWSW(N|SEEE(NWES|)EEES(W|S))|NEENES)|E))))|ENNE(S|E(E|N(W|NN))))))|W)|ENNESSS(SSEEE(SWWEEN|)(NN|EE)|WW)))|W)|N)|W))))|E(NEEENW(WWW|NEN(W|E(N|SSS(SWWWEEEN|)EENNWS)))|SS))|E)|N)))|SEEESE(NNWNSESS|)SWS(EE(SWSEENE(WSWWNEWSEENE|)|NN)|W))|W)|WWS(S|E))))))|NE(N|S)))|WNNNEN(E|WW))))|W))|N)|NWNNES)|W))|W)))|NNNNESSSENNN(SSSWNNSSENNN|))|NN(E(S|EN(W|ESEENNW(S|NNNNWWW(SEESNWWN|)NEEEENE(N|SESS(ENNESNWSSW|)SSWNW(NNESNWSS|)S))))|W))))|S)))|W)|W(NN|W))|E)|W(NEWS|)S))|SEESWSSSSWWSS(E(NEENSWWS|)SS|WNWW(SEWN|)NEEN(EENNNSSSWW|)W))))|N))|NN)|NENEN(WNNSSE|)EEE(N(W|EN(WNE|ES))|S(S|WW))))|NN))))|N)|N)|NNNENWNENNESSSSENEENEE(NWWNWSW(SEWN|)NNWWNNENESEEEEN(NWWW(SEEWWN|)NEEENWN(WWWWWSSW(NNNNN(E(EENNEWSSWW|)SS|NNNNNE)|SE(EENN(WSNE|)EE|SWSSSSS(NNNNNEWSSSSS|)))|EEE)|ESE(SWWSEESSWNWWNNWW(SEWN|)WW|N))|SSW(N|WWS(WWWSNEEE|)E)))|ESENNEEESSWW(NEWS|)SS(WNWESE|)(SS|EEN(W|E(S|ENWNEESE(NNNESSS(NNNWSSNNESSS|)|S(S|W)))))))|N)|NNESEE(NWN(WNENNENWWW(SESWSS|NNEEES(EENEENWNEESSEENNNW(NEEESSW(SSSWWWS(WW(NEWS|)WW|EESENENNEN(W|NNEEENEENN(WWS(WWN(WWWWWS(EEEESEE(WWNWWWEEESEE|)|WSWS(WNNWN(WSWNWWSSW(NN|SEEN(N|EESSS(ENNNSSSW|)(S|WN(N|WSWNWS))))|EE(S|E))|E))|E)|E)|EEESSWW(NEWS|)SESWSSENENESSWSES(WWWN(E|WNNNNWSSSWSW(SES(W|EE(NWNSES|)ESS(WNSE|)E(NN|S))|W(NNE(S|N(ESNW|)W)|W)))|E(NNNE(SSENEWSWNN|)NNW(W(NNNEEWWSSS|)W|S)|S)))))|N)|SS)|WW))|E)|S(S|W))))))|E))))|ESS(EN(ESNW|)N|W(WW|N))))))|NN(ENWESW|)WSWSWNN(N|E)))|S))))|E)|N)))|SWWSEESSWWWN(NNWSSSSE(E|SSW(SSS|N))|EE))|EE))|EE))|E(NN|E))|SS))|SEESS(S|EEE(NWWNEWSEES|)E))))|WS(WW|E(SWSEWNEN|)E))|E))))))|WNWWS(ESNW|)WNWWWW(SEEESNWWWN|)NEENN(WWS(E|W(NNNESEN(SWNWSSNNESEN|)|W))|ESSEEEE(WWWWNNSSEEEE|)))|SWWSSE(SSEWNN|)N))|N))|W)|SS(WNSE|)S))))))|NNNE(N(ESNW|)W|S))|E))))|S(E|SSW(WNENSWSE|)SEESWS(W(WWSSNNEE|)N|E))))|S))))$
diff --git a/day20.rb b/day20.rb
new file mode 100644
index 0000000..1b4fc78
--- /dev/null
+++ b/day20.rb
@@ -0,0 +1,48 @@
+r = File.read("day20")
+
+#r = "^ENNWSWW(NEWS|)SSSEEN(WNSE|)EE(SWEN|)NNN$"
+#r = "^WSSEESWWWNW(S|NENNEEEENN(ESSSSW(NWSW|SSEN)|WSWWN(E|WWS(E|SS))))$"
+
+r.gsub!(/^\^|\$$/, '')
+
+
+def dist(str)
+  seen = []
+  x = y = 0
+  str.chars.each { |c|
+    case c
+    when "E"; x += 1
+    when "W"; x -= 1
+    when "S"; y += 1
+    when "N"; y -= 1
+    end
+    seen << [x,y]
+  }
+  seen.uniq.size
+end
+
+p1 = 0
+p2 = 0
+
+stk = [""]
+r.chars.each { |c|
+  case c
+  when "E", "S", "W", "N"
+    stk.last << c
+    p1 = [p1, dist(stk.last)].max
+    p2 += 1  if dist(stk.last) > 1000
+  when "("
+    stk << stk.last.dup
+  when "|"
+    stk.pop
+    stk << stk.last.dup
+  when ")"
+    stk.pop
+  end
+}
+
+p p1  # 3788
+p p2  # 8568
+
+# 9558 too high
+# 9557 too high
diff --git a/day21 b/day21
new file mode 100644
index 0000000..f2d4b98
--- /dev/null
+++ b/day21
@@ -0,0 +1,32 @@
+#ip 1
+seti 123 0 5
+bani 5 456 5
+eqri 5 72 5
+addr 5 1 1
+seti 0 0 1
+seti 0 3 5
+bori 5 65536 4
+seti 13284195 4 5
+bani 4 255 3
+addr 5 3 5
+bani 5 16777215 5
+muli 5 65899 5
+bani 5 16777215 5
+gtir 256 4 3
+addr 3 1 1
+addi 1 1 1
+seti 27 1 1
+seti 0 5 3
+addi 3 1 2
+muli 2 256 2
+gtrr 2 4 2
+addr 2 1 1
+addi 1 1 1
+seti 25 2 1
+addi 3 1 3
+seti 17 1 1
+setr 3 7 4
+seti 7 3 1
+eqrr 5 0 3
+addr 3 1 1
+seti 5 3 1
diff --git a/day21.rb b/day21.rb
new file mode 100644
index 0000000..a64a16a
--- /dev/null
+++ b/day21.rb
@@ -0,0 +1,67 @@
+insn = [:eqri, :seti, :eqir, :eqrr, :addi, :setr, :gtrr, :gtir, :muli, :bori, :bani, :borr, :gtri, :banr, :addr, :mulr]
+
+def op(cmd, regs)
+  regs2 = regs.dup
+
+  case cmd[0]
+  when :addr; regs2[cmd[3]] = regs[cmd[1]] + regs[cmd[2]]
+  when :addi; regs2[cmd[3]] = regs[cmd[1]] + cmd[2]
+  when :mulr; regs2[cmd[3]] = regs[cmd[1]] * regs[cmd[2]]
+  when :muli; regs2[cmd[3]] = regs[cmd[1]] * cmd[2]
+  when :banr; regs2[cmd[3]] = regs[cmd[1]] & regs[cmd[2]]
+  when :bani; regs2[cmd[3]] = regs[cmd[1]] & cmd[2]
+  when :borr; regs2[cmd[3]] = regs[cmd[1]] | regs[cmd[2]]
+  when :bori; regs2[cmd[3]] = regs[cmd[1]] | cmd[2]
+  when :setr; regs2[cmd[3]] = regs[cmd[1]]
+  when :seti; regs2[cmd[3]] = cmd[1]
+  when :gtir; regs2[cmd[3]] = cmd[1] > regs[cmd[2]] ? 1 : 0
+  when :gtri; regs2[cmd[3]] = regs[cmd[1]] > cmd[2] ? 1 : 0
+  when :gtrr; regs2[cmd[3]] = regs[cmd[1]] > regs[cmd[2]] ? 1 : 0
+  when :eqri; regs2[cmd[3]] = regs[cmd[1]] == cmd[2] ? 1 : 0
+  when :eqir; regs2[cmd[3]] = cmd[1] == regs[cmd[2]] ? 1 : 0
+  when :eqrr; regs2[cmd[3]] = regs[cmd[1]] == regs[cmd[2]] ? 1 : 0
+  end
+
+  regs2
+end
+
+rip, *program = File.readlines("day21")
+
+rip = rip.scan(/\d/)[0].to_i
+
+program.map! { |line|
+  o,a,b,c = line.split
+  [o.to_sym, a.to_i, b.to_i, c.to_i]
+}
+
+regs = [0]*6
+regs[0] = 0
+ip = 0
+
+or5 = 0
+
+seen = []
+
+# 3_000_000.times {
+loop {
+  break  if ip < 0 || ip >= program.size
+
+  regs[rip] = ip
+  regs = op(program[ip], regs)
+
+  if program[ip][0] == :eqrr
+    p regs[5]
+    if seen.include? regs[5]
+      break
+    end
+    seen << regs[5]
+  end
+
+  ip = regs[rip] + 1
+}
+
+p regs
+p seen
+
+# 7224964
+# 13813247 first before duplicate
diff --git a/day22 b/day22
new file mode 100644
index 0000000..0426b39
--- /dev/null
+++ b/day22
@@ -0,0 +1,2 @@
+depth: 11739
+target: 11,718
diff --git a/day22.rb b/day22.rb
new file mode 100644
index 0000000..e1cb1a8
--- /dev/null
+++ b/day22.rb
@@ -0,0 +1,34 @@
+DEPTH = 11739
+TX, TY = 11, 718
+
+#DEPTH = 510
+#TX, TY = 10, 10
+
+$GI = {}
+def gi(x,y)
+  $GI[[x,y]] ||=
+  if (x == 0 && y == 0) || (x == TX && y == TY)
+    0
+  elsif y == 0
+    x * 16807
+  elsif x == 0
+    y * 48271
+  else
+    el(x-1,y) * el(x,y-1)
+  end
+end
+
+def el(x,y)
+  (gi(x,y) + DEPTH) % 20183
+end
+
+p gi(0,0)
+p el(1,1)
+
+p1 = 0
+(0..TX).each { |x|
+  (0..TY).each { |y|
+    p1 += el(x,y)%3
+  }
+}
+p p1  # 8735
diff --git a/day23 b/day23
new file mode 100644
index 0000000..47b4554
--- /dev/null
+++ b/day23
@@ -0,0 +1,1000 @@
+pos=<-22356506,24819383,19709017>, r=53389427
+pos=<-17754746,29336035,-6021399>, r=68469044
+pos=<-28773573,22083066,35754706>, r=73115842
+pos=<-42043810,-4459593,13364132>, r=84568654
+pos=<1377848,7981572,-53489987>, r=95559952
+pos=<77798984,113924090,-46144528>, r=99130575
+pos=<-21811459,22764450,23866452>, r=54946920
+pos=<-24406099,34895910,6268549>, r=68390278
+pos=<191202236,41463041,27590787>, r=52967460
+pos=<7482975,45518455,58224369>, r=82764489
+pos=<47275743,27337294,35902156>, r=59086064
+pos=<-20109964,19119467,30852453>, r=56586481
+pos=<-9214366,54244996,23604816>, r=73568692
+pos=<-17274958,20368960,32810868>, r=56959289
+pos=<10289599,84963381,19396434>, r=80574757
+pos=<-16451482,34636846,21583141>, r=59176130
+pos=<-7866204,19527727,50341893>, r=64240563
+pos=<2810784,79426857,8134034>, r=83839005
+pos=<-37053157,19697549,15699972>, r=58955487
+pos=<4482142,31526501,6872272>, r=65043744
+pos=<-37808820,12085004,25843085>, r=74144216
+pos=<-28871779,30192064,3825211>, r=70595546
+pos=<-9536367,19168337,46725588>, r=61934832
+pos=<40197278,20075006,11981046>, r=96486039
+pos=<-3511627,-29548596,16636002>, r=72273377
+pos=<-48052304,32226064,20009798>, r=86792737
+pos=<-11358294,59313872,39222020>, r=96398679
+pos=<62206841,32247643,-16460480>, r=88338014
+pos=<-33649141,1116960,20225107>, r=75334336
+pos=<-5379923,57808473,32005160>, r=81698408
+pos=<-27846254,20891670,1064576>, r=63030202
+pos=<51343948,24389554,70297480>, r=94601641
+pos=<13016236,-16050735,60216421>, r=85828167
+pos=<32736913,20320221,57098799>, r=58726593
+pos=<-16889613,33693367,10521298>, r=55418498
+pos=<-12275831,30836077,27126052>, r=56742839
+pos=<74031008,21804950,29441983>, r=73848693
+pos=<-62660174,19947603,16856783>, r=85969050
+pos=<42447735,45673720,19515353>, r=56207776
+pos=<60039053,28436782,25883499>, r=62930017
+pos=<37512688,25132452,76286231>, r=87502018
+pos=<17866975,23017707,79667382>, r=71322908
+pos=<7665948,21260606,10764360>, r=76109218
+pos=<-2440559,47525061,-1696322>, r=67018981
+pos=<-22995980,28977299,-23924985>, r=91255150
+pos=<8550958,91720682,139747174>, r=58429255
+pos=<-29695457,19854538,28087357>, r=64141854
+pos=<5061573,22998273,68724243>, r=73165453
+pos=<-6175193,31848913,-1368880>, r=54749818
+pos=<-32886397,41344119,38279044>, r=99014138
+pos=<1006406,-43212024,21688712>, r=86471386
+pos=<-13805836,37333964,55453375>, r=93098080
+pos=<-168931884,36273749,32133035>, r=79574022
+pos=<15544614,49586329,57505627>, r=78051964
+pos=<-19859235,30891815,22902630>, r=60158674
+pos=<-29090862,23470069,11201042>, r=56716790
+pos=<-27479894,19699617,-6297987>, r=68834492
+pos=<-24512631,28043510,15779964>, r=54840619
+pos=<-5291579,30469021,54006749>, r=76271965
+pos=<-40606510,47134722,23068855>, r=97314638
+pos=<-35235698,25789979,-18390847>, r=94773444
+pos=<62824419,27807413,22075398>, r=61277908
+pos=<69995231,24930779,15594621>, r=59091442
+pos=<-14178452,25463550,24053139>, r=50199680
+pos=<-852074,34696906,29946338>, r=52000657
+pos=<-10841979,77715733,13136014>, r=90778594
+pos=<-29424868,28824800,22577763>, r=67332159
+pos=<-11006037,30225984,-2402652>, r=58991532
+pos=<16878969,49416791,36416947>, r=55459301
+pos=<30417860,-26381527,37100896>, r=78543556
+pos=<106074135,37692408,-99141334>, r=81416529
+pos=<-53638678,39250330,11078510>, r=97167485
+pos=<141555,24016661,7051936>, r=86299326
+pos=<-34448950,27050981,34835368>, r=82840143
+pos=<-21066693,20264528,33912584>, r=61748321
+pos=<7687633,25240259,23606696>, r=50550493
+pos=<29962778,17015310,23970328>, r=78199322
+pos=<-17365290,27947849,19929970>, r=51747602
+pos=<-19605455,27076354,20136150>, r=53322597
+pos=<67670934,32724878,8556928>, r=69261842
+pos=<-38157562,-10201485,28256197>, r=99192296
+pos=<-8781844,53642930,17776074>, r=66705385
+pos=<-13411472,52283669,35841827>, r=88041478
+pos=<8583325,62321841,30724843>, r=70968178
+pos=<-52247995,16087121,2556661>, r=85033682
+pos=<152007,48137440,40860662>, r=75350588
+pos=<-1463907,40832547,29631909>, r=58433117
+pos=<85312654,24375940,26062105>, r=84321359
+pos=<-12141864,50011852,24030092>, r=72688294
+pos=<-1208469,68580504,28119448>, r=84412913
+pos=<-6222629,51070741,17434479>, r=61232449
+pos=<-40882441,28491384,19850631>, r=75728981
+pos=<165388353,63326184,39193103>, r=99805853
+pos=<-28261713,37298224,22501498>, r=74566042
+pos=<9807375,20372322,-30706931>, r=56628731
+pos=<-19413806,24547219,64482302>, r=94948110
+pos=<-37790174,24437163,17492901>, r=66224736
+pos=<67730507,21557587,22012405>, r=59871597
+pos=<-19519520,24073183,31847749>, r=61944948
+pos=<-46530322,19629579,36489647>, r=89154164
+pos=<-4012414,38471190,23852070>, r=52840190
+pos=<46667187,14172523,47350434>, r=64488320
+pos=<72784272,20748537,20618670>, r=62722302
+pos=<71468821,22903578,44855975>, r=87799019
+pos=<31914021,75453452,37345432>, r=93283586
+pos=<35426160,46827366,26108193>, r=56932479
+pos=<-21782199,21252428,42033212>, r=71572737
+pos=<41019167,34450294,-13645780>, r=66538278
+pos=<-55330157,2263632,11168336>, r=93327582
+pos=<-938789,86174611,25040631>, r=98658596
+pos=<25934756,28420308,15964412>, r=52360869
+pos=<-8105107,32857264,32132107>, r=59599034
+pos=<67702242,30023662,9894535>, r=65254476
+pos=<-27970162,20882180,19379828>, r=54736921
+pos=<15246572,11357059,22679160>, r=76349515
+pos=<725888,-12723106,47917506>, r=82491793
+pos=<-18941730,31568565,40984159>, r=77999088
+pos=<-20343505,35795352,17928957>, r=60572435
+pos=<-50024165,27538080,30169972>, r=94236792
+pos=<14916897,-18159640,29524464>, r=55344268
+pos=<88051569,-7098715,17503153>, r=97296747
+pos=<10218298,69951896,28867329>, r=75105546
+pos=<45856848,10728400,-14576175>, r=63200220
+pos=<-37108806,19338453,15840859>, r=58792605
+pos=<75161553,52165674,21925300>, r=97823276
+pos=<-8655272,24265325,60666473>, r=80091771
+pos=<15020271,36669723,84510358>, r=92664369
+pos=<58669550,22155995,5046969>, r=53201583
+pos=<54394118,19804076,58951143>, r=81720083
+pos=<-39597876,27090197,-8772781>, r=90818274
+pos=<-37344234,19275039,-21279846>, r=93256133
+pos=<-1628183,38404350,44392979>, r=70930041
+pos=<35484920,52958779,57486816>, r=94501736
+pos=<62873185,19632492,62927599>, r=94004205
+pos=<-28379188,14359697,29922407>, r=66518949
+pos=<-20995796,19219797,28923805>, r=55643896
+pos=<-28070212,32119719,23869110>, r=70563606
+pos=<48874841,25806149,35996882>, r=59248540
+pos=<-36523110,58326149,10883736>, r=99322513
+pos=<6400987,27365399,20661423>, r=60089087
+pos=<48067583,26763370,-32786362>, r=85040702
+pos=<6336804,70191899,41718072>, r=92077883
+pos=<-71927636,21992080,17631430>, r=98055706
+pos=<81066992,8404647,17190866>, r=74496421
+pos=<-18572577,33571708,26527904>, r=65176846
+pos=<33175113,40265919,62703641>, r=84715351
+pos=<353630,57477688,45600153>, r=89228721
+pos=<11083786,69599511,30719664>, r=75739875
+pos=<-17488674,30764752,38851617>, r=73609620
+pos=<-49718532,32637220,25586396>, r=94446703
+pos=<15451978,23152152,62277900>, r=56482598
+pos=<-42715255,40068320,7337630>, r=90802835
+pos=<-11627268,64600628,31891345>, r=94623990
+pos=<-31744892,19944995,22843768>, r=61038200
+pos=<15347441,56066422,27945024>, r=55168497
+pos=<49898726,42903332,53663507>, r=95036196
+pos=<6260135,24472962,84411171>, r=89128520
+pos=<222054855,21615288,6364360>, r=71240818
+pos=<7315444,49127217,40619299>, r=68936184
+pos=<-31061005,23141139,21897097>, r=62604373
+pos=<-126474321,40724809,-33615920>, r=85167298
+pos=<-2804772,27683281,12687365>, r=83626248
+pos=<-47644671,37824198,15724920>, r=87698314
+pos=<-47125471,23248934,18767037>, r=75645946
+pos=<1140080,21840913,16111038>, r=96523207
+pos=<-17562924,7812577,20598547>, r=52925942
+pos=<-25959305,30882398,22713085>, r=66059283
+pos=<-28916095,21631858,34186520>, r=71239225
+pos=<5264890,52252362,51244933>, r=84737081
+pos=<1964391,29700536,54168927>, r=68410253
+pos=<-44946752,19782298,16176722>, r=67410417
+pos=<-6646688,27005624,67765168>, r=87922167
+pos=<6392194,30902574,50815463>, r=61830348
+pos=<-25072186,45061444,26892173>, r=83530306
+pos=<9262991,23431918,49451511>, r=50125019
+pos=<12762578,42001950,54626057>, r=70370239
+pos=<49132642,-9207996,45829961>, r=88813998
+pos=<49991950,73929949,19621642>, r=92114397
+pos=<7941216,24438871,31522572>, r=80942226
+pos=<-82785908,53265419,78123494>, r=52842890
+pos=<-42144086,39933543,19857110>, r=88439259
+pos=<-1323227,27092939,35754688>, r=50675371
+pos=<-13449052,32633130,23248487>, r=55835189
+pos=<-33317630,31457216,20575447>, r=71854919
+pos=<-32336088,15465548,25395070>, r=64842758
+pos=<-50116304,43872971,9935995>, r=99410227
+pos=<96166223,21041290,15978716>, r=81756922
+pos=<-64609071,23548589,16991276>, r=91653887
+pos=<-22034273,12865326,54920065>, r=86666172
+pos=<13462860,-5203283,-24847655>, r=68017504
+pos=<-4573689,1828319,65581090>, r=90903999
+pos=<45759849,33276316,58166791>, r=85773618
+pos=<77528785,23195394,17152796>, r=66447605
+pos=<-1507011,26222979,46141506>, r=60375994
+pos=<21901845,31754349,28884691>, r=68955754
+pos=<-36694253,41710804,154533592>, r=74959923
+pos=<-14715221,20918319,34936824>, r=57074941
+pos=<13694420,52074861,57850208>, r=82735317
+pos=<-9949931,-6519913,49922020>, r=88968916
+pos=<-14716348,30330369,38621292>, r=70172496
+pos=<30807550,58366942,57326610>, r=95071733
+pos=<80160104,21441622,19012272>, r=69185273
+pos=<-8960402,28731263,31761803>, r=55957957
+pos=<-8351933,10303665,40527054>, r=61152482
+pos=<-40883713,23300348,34215984>, r=84904941
+pos=<-61739808,19171513,10920230>, r=85348290
+pos=<-9395031,39402893,22763156>, r=58065727
+pos=<-53111243,6626969,16099671>, r=85161187
+pos=<17324245,76306986,-21833335>, r=96172965
+pos=<65553708,31895424,24764243>, r=70784213
+pos=<-35905383,4246146,31425222>, r=85661536
+pos=<4849211,59484221,20962149>, r=62101829
+pos=<-32479384,33752867,25573599>, r=78310660
+pos=<30164641,21015869,24375541>, r=68980152
+pos=<-49645331,25874086,29829876>, r=91853850
+pos=<23680947,28293695,56763812>, r=57309404
+pos=<-25564646,29517464,27145085>, r=68731705
+pos=<68421778,27278090,-16605747>, r=89728573
+pos=<16528575,93754615,23313375>, r=87043904
+pos=<51834580,5641153,23237402>, r=54074038
+pos=<78005953,32218867,16708137>, r=75503588
+pos=<-28203724,13897916,48429087>, r=85311999
+pos=<-39975732,33123389,9617871>, r=78838150
+pos=<14080825,29446070,49158631>, r=51028594
+pos=<-40350716,25256026,20829461>, r=72940911
+pos=<97192622,2258066,17796665>, r=97374461
+pos=<12880929,22386619,70384376>, r=66394574
+pos=<-25661743,56175310,24496465>, r=92838114
+pos=<20689574,-4253126,22136437>, r=68615542
+pos=<-7860313,49812834,25112308>, r=69290011
+pos=<9487166,41269734,37895914>, r=56182982
+pos=<-21058316,39366347,1910443>, r=73871436
+pos=<-589523,20314903,10527926>, r=86961420
+pos=<-20639734,-6792050,21536829>, r=71545671
+pos=<-6287711,14287888,-11935724>, r=55365443
+pos=<-59130250,30030819,5295282>, r=99222605
+pos=<-1443925,-23435737,23507820>, r=70964584
+pos=<16054984,65143126,26765978>, r=62358862
+pos=<60929913,-2999270,33309756>, r=81882228
+pos=<-28406057,16453693,54569312>, r=89099138
+pos=<-50232030,16894626,35563872>, r=91478393
+pos=<15143218,-49648683,22412406>, r=79494952
+pos=<-27471607,6189194,15813617>, r=59673094
+pos=<11692984,52246073,27036699>, r=54094303
+pos=<-60832761,21161731,15680101>, r=84179345
+pos=<11253962,73190364,4510170>, r=72783476
+pos=<92999994,19878998,19379350>, r=80828975
+pos=<-70876960,21111788,16465076>, r=94958323
+pos=<-48463435,23773289,15584995>, r=74326256
+pos=<-2032178,41086652,67989912>, r=97613332
+pos=<11990201,16280859,22643658>, r=50725483
+pos=<64765745,-2416825,25782294>, r=77608071
+pos=<-15584274,25839072,-36168049>, r=92948310
+pos=<-26732949,-16483129,24791120>, r=90584289
+pos=<25406450,57926010,62244051>, r=94147147
+pos=<20993131,93943130,18516612>, r=82023503
+pos=<51340007,22707233,-14507105>, r=65977345
+pos=<101856286,19146507,10909293>, r=87516512
+pos=<-4733631,11558601,76310899>, r=92063019
+pos=<-58072356,34388599,18965669>, r=97931152
+pos=<-33847202,20906996,19387569>, r=60646353
+pos=<14759729,7855338,35269693>, r=70789644
+pos=<26444204,71346799,25123633>, r=71485341
+pos=<-73893543,21891073,15591087>, r=97880527
+pos=<11744722,41501201,48633046>, r=64894126
+pos=<-56954222,20364256,19230452>, r=83053421
+pos=<-35155952,29729682,25304589>, r=76694735
+pos=<26074635,15275059,21379778>, r=68522833
+pos=<12110774,27563455,11784388>, r=67123691
+pos=<4559518,47505660,25741178>, r=55191827
+pos=<62558060,24860233,28540900>, r=64529831
+pos=<1942759,60653291,30574277>, r=75789303
+pos=<46948686,46171702,40886542>, r=82577595
+pos=<5931467,73399499,27972034>, r=81944828
+pos=<-15471379,29318461,27316201>, r=58610666
+pos=<31130069,28444881,82539354>, r=90685375
+pos=<-20666853,27259059,40722601>, r=75153281
+pos=<-47918384,19893597,35022987>, r=89339525
+pos=<-52020776,24009824,20804566>, r=83339654
+pos=<14944505,72051411,37073422>, r=80684815
+pos=<35338609,40208350,68429016>, r=92546604
+pos=<5467568,39193965,69171065>, r=89402020
+pos=<-12509118,-11749859,36278546>, r=83114639
+pos=<3456012,28458399,44353756>, r=55860702
+pos=<6399493,37485797,45979953>, r=63570769
+pos=<1678963,13293384,61696236>, r=69301053
+pos=<17276056,-3982958,75755689>, r=85039638
+pos=<14559180,63641475,15442837>, r=51029887
+pos=<-3051901,21659715,-20951386>, r=61019955
+pos=<-32256330,23117129,8803332>, r=61927319
+pos=<37437526,47871274,26636731>, r=60516522
+pos=<-15704060,45777961,17317506>, r=65304222
+pos=<28035804,26837710,16142265>, r=97890931
+pos=<77930887,19618706,19870770>, r=65990994
+pos=<-17274941,31395651,24461350>, r=59636432
+pos=<-34248301,24255654,6558333>, r=67302445
+pos=<61585659,43227453,24083478>, r=77467227
+pos=<15012143,10066192,16684458>, r=93283730
+pos=<3169969,52726593,43034264>, r=79095775
+pos=<13611615,19816668,88328238>, r=81037819
+pos=<15367957,29337890,61834758>, r=62309264
+pos=<-43859641,27858637,37611953>, r=95834926
+pos=<-54836877,21744186,15890917>, r=78976503
+pos=<-32396391,23233980,42596802>, r=84732502
+pos=<-9432953,21280794,-41672679>, r=87743448
+pos=<-29618857,20083419,6547469>, r=58511980
+pos=<-7357957,49308014,36076832>, r=79247362
+pos=<2501105,26690771,18227056>, r=69600431
+pos=<-3066209,48810305,-2479520>, r=69713065
+pos=<-5738161,66653915,27921764>, r=86818349
+pos=<55719396,58463783,30806191>, r=93560018
+pos=<73857977,23895493,18766670>, r=65090838
+pos=<-65568502,15773061,18405411>, r=90778418
+pos=<11921070,38468124,47984116>, r=61035911
+pos=<-32221355,33668479,19661892>, r=72056229
+pos=<-33626850,14024394,17362470>, r=59542022
+pos=<-6974624,49017333,-7406006>, r=78754872
+pos=<6987804,-31439178,-14582268>, r=90463030
+pos=<-64291545,19114317,1809089>, r=96953856
+pos=<79926649,20138617,41765014>, r=90401212
+pos=<1810331,41668547,28283895>, r=54646626
+pos=<-22533695,34255754,17959719>, r=61253869
+pos=<-6733137,28261186,-12681371>, r=63032643
+pos=<56070466,30880916,17390051>, r=52912064
+pos=<-16046921,-21009303,29450025>, r=89083582
+pos=<8009825,25445830,64006678>, r=67947393
+pos=<-16317759,45170137,-14983724>, r=91828437
+pos=<-815205,71317845,27540080>, r=86177702
+pos=<39839069,13184378,22867072>, r=59159861
+pos=<37811438,25564474,66237861>, r=78184518
+pos=<45810323,35946133,23278862>, r=53606019
+pos=<-13118197,23215402,32258204>, r=55096527
+pos=<4024404,75212057,29517102>, r=87209283
+pos=<-12748911,24638092,-9117665>, r=61861706
+pos=<-5750329,27437395,43463954>, r=63156257
+pos=<6832553,21511638,33156140>, r=56517778
+pos=<-62894985,24385226,15608723>, r=89393544
+pos=<77834,49556191,13293565>, r=51541838
+pos=<-61379226,19972832,4831399>, r=91877481
+pos=<-36255686,16247719,22313812>, r=64898967
+pos=<-26234455,31553000,24387769>, r=68679839
+pos=<8964592,38620749,74888640>, r=91049441
+pos=<-119872,30062596,41464113>, r=58151090
+pos=<-7185569,21397828,37258740>, r=52346626
+pos=<332476,29290566,76270151>, r=91732966
+pos=<82474752,26255964,7587448>, r=78566251
+pos=<-40917566,40926437,21698992>, r=90047736
+pos=<-45698230,14201981,23929391>, r=78002790
+pos=<-31875696,23436832,-6224246>, r=76893820
+pos=<-21695955,22687879,21481906>, r=52370230
+pos=<58187016,59755465,10076590>, r=85289253
+pos=<-51649463,4073199,24829327>, r=94983032
+pos=<-11528895,-13252964,18542012>, r=65901119
+pos=<-18292734,-744206,7350728>, r=63115841
+pos=<-10751386,37157528,21332818>, r=55746226
+pos=<-41411115,-8684567,15548429>, r=88221228
+pos=<26437526,40809963,45148110>, r=60966230
+pos=<-29091548,-100577178,63261920>, r=85206387
+pos=<-9897288,29004258,59878203>, r=85284252
+pos=<-28095107,22090188,36683265>, r=73373055
+pos=<332579,24331853,53049177>, r=63553241
+pos=<-37315274,47800389,19192187>, r=90812340
+pos=<-17972579,28596958,-281275>, r=62207715
+pos=<-36770337,35302892,-5356709>, r=92786785
+pos=<22815381,71244426,38716925>, r=81347372
+pos=<-894102,43608992,48397509>, r=79405101
+pos=<42506842,22395984,22081662>, r=56669140
+pos=<-26186312,42394828,6765646>, r=77172335
+pos=<29530872,30842596,41701127>, r=50645224
+pos=<11636855,-7799133,-7304499>, r=54896156
+pos=<-33353173,47164750,21713116>, r=88735603
+pos=<12560088,13719273,65145>, r=84802598
+pos=<88271940,16758556,17745541>, r=73902262
+pos=<4001660,26464002,-14501981>, r=52321824
+pos=<16982960,-40004880,41117815>, r=86717206
+pos=<13113771,42442444,19251783>, r=75890504
+pos=<-29679470,37629875,23160340>, r=76974173
+pos=<71089799,24760757,17371666>, r=61793065
+pos=<-8024183,58523077,43503539>, r=96555744
+pos=<-12185654,35783902,52715104>, r=87189150
+pos=<-5788296,47682267,-3804291>, r=72631691
+pos=<72133155,899599,25401275>, r=81278414
+pos=<21829441,71389576,46167730>, r=87957377
+pos=<67144263,26377484,25431706>, r=67524392
+pos=<-43110567,31704368,22276756>, r=83596183
+pos=<9739729,37091510,40433774>, r=54290143
+pos=<13850730,-11208867,54578523>, r=74513802
+pos=<15279912,28862717,77651228>, r=77738643
+pos=<29318075,37582100,51115428>, r=66586312
+pos=<-18744388,33095390,59504226>, r=97848603
+pos=<67826313,32568899,16923420>, r=65889260
+pos=<-1981152,51896501,42797573>, r=83179714
+pos=<-54137449,35654602,20335873>, r=96632451
+pos=<-24670531,29968739,25314432>, r=66458217
+pos=<-16116043,43005941,50921359>, r=96548000
+pos=<92651030,25710262,18935773>, r=85867718
+pos=<45006406,42463141,30511035>, r=66551832
+pos=<-39886761,34035903,7477911>, r=81801831
+pos=<-27656328,33450812,24448598>, r=72060384
+pos=<-3661447,44933449,12233488>, r=51718587
+pos=<-35153958,35363533,27417691>, r=84439875
+pos=<-24779635,5113302,38320449>, r=80563843
+pos=<6075871,-27885696,31256896>, r=75643804
+pos=<1742661,30742814,61607409>, r=77112126
+pos=<-4531497,45940087,-5097588>, r=70926059
+pos=<87455541,16073051,18851365>, r=74877045
+pos=<-12057904,52925992,32985814>, r=84474356
+pos=<-33245967,21829849,47998053>, r=89578589
+pos=<9098086,33245245,62003823>, r=72655646
+pos=<-16989103,6550823,-15065575>, r=76933253
+pos=<-34091971,30925760,22476780>, r=73999161
+pos=<-4754891,44813508,30676286>, r=66749255
+pos=<-34770113,34849859,35626757>, r=91751226
+pos=<-3245426,21344940,16386753>, r=73942370
+pos=<-5992355,24072914,34308508>, r=50878304
+pos=<61192094,22719285,10490926>, r=50843424
+pos=<-22650033,36376678,31805054>, r=77336258
+pos=<16578977,53596365,-17391334>, r=69765609
+pos=<-35037258,27019421,24299476>, r=72860921
+pos=<16989567,20021649,27794497>, r=86103287
+pos=<3095528,53938061,43299329>, r=80646489
+pos=<30838657,54490792,16307970>, r=50208758
+pos=<-20548116,26903548,-13704101>, r=76512777
+pos=<4092320,66765759,27539403>, r=76717884
+pos=<22149723,30809709,-52727473>, r=83110097
+pos=<-45909650,41111046,13094493>, r=89283173
+pos=<-4368532,26842794,34690837>, r=52406656
+pos=<-14814619,32401259,21990646>, r=55711172
+pos=<-8989543,36580198,27209012>, r=59283487
+pos=<-50011157,23904627,17755620>, r=78176059
+pos=<-59215512,24657057,16584409>, r=86961561
+pos=<-34457879,31529893,4771295>, r=76573381
+pos=<-28461365,-17183409,27955879>, r=96177706
+pos=<17428126,21460317,72192711>, r=62729410
+pos=<12246932,29861461,7380138>, r=59028875
+pos=<31632552,54473280,6222405>, r=57306390
+pos=<4443377,61473851,26585507>, r=70120529
+pos=<2665798,48726225,-13783192>, r=75200520
+pos=<56329869,66601987,7180100>, r=93174732
+pos=<-2539586,45254492,22703989>, r=57002686
+pos=<9063516,91924569,18097496>, r=87463213
+pos=<59446181,3735908,24784095>, r=65137664
+pos=<13465363,50056718,41052658>, r=64148526
+pos=<-56414591,6215069,18029068>, r=90805692
+pos=<16014009,6094240,16614764>, r=76066751
+pos=<17095650,70472856,58517139>, r=98398881
+pos=<7682204,24673605,25105498>, r=78836457
+pos=<-26684331,47084583,29000114>, r=89273762
+pos=<-31832614,22949642,51551368>, r=92838129
+pos=<9798056,51377676,6640540>, r=50296465
+pos=<40890960,41749608,52176418>, r=83387794
+pos=<-21887345,20583456,29287284>, r=58262910
+pos=<17045487,-25590827,23772578>, r=54895064
+pos=<-30689679,28694079,27008193>, r=72896499
+pos=<13366331,39802345,41508716>, r=54450123
+pos=<97664020,29949651,20131664>, r=96316112
+pos=<1807425,56837275,-25545739>, r=95932471
+pos=<-33789297,25603591,37990609>, r=83887997
+pos=<25604086,65611529,25722762>, r=65509092
+pos=<-9553164,34462025,39057759>, r=69577537
+pos=<-12978785,-2594393,19468965>, r=57619186
+pos=<-9197106,20046727,38067531>, r=53816050
+pos=<-14306938,-2783159,26939477>, r=66606649
+pos=<-60262357,9690817,18501913>, r=91650714
+pos=<-25052260,-15309253,17966912>, r=80905706
+pos=<5955716,81338048,26955198>, r=88842164
+pos=<73398525,-7358964,16946750>, r=82347427
+pos=<-31000330,19987851,17786746>, r=55279414
+pos=<-44078931,27422921,28507988>, r=86514402
+pos=<-26267675,50935123,19596190>, r=83303724
+pos=<-44518995,22090173,24530318>, r=77644105
+pos=<-4996912,36796160,24391145>, r=52688786
+pos=<-25037046,37820308,-552304>, r=78766579
+pos=<-15673058,45701132,44397473>, r=92276338
+pos=<1094884,42126869,25363190>, r=52900066
+pos=<-10235365,27601596,58158562>, r=82500376
+pos=<-21162963,25049592,28249204>, r=60966259
+pos=<-25437003,24371429,17032673>, r=53345603
+pos=<1741187,37272762,-22495840>, r=73384700
+pos=<-3943283,27573023,-45759240>, r=92632362
+pos=<7985951,20762161,12141888>, r=55031219
+pos=<3959434,-36167177,21405941>, r=76190726
+pos=<8176565,35751846,40147224>, r=54226999
+pos=<28574345,-6104433,73444926>, r=92766904
+pos=<-19395377,30333995,20293119>, r=56527022
+pos=<22075789,90739612,16961187>, r=78347620
+pos=<-2910991,29720091,69659492>, r=88795368
+pos=<-28641868,741459,18085008>, r=68562477
+pos=<4453848,47844431,24048898>, r=53944007
+pos=<-13121082,26779191,25740846>, r=52145628
+pos=<58639441,34757304,41544397>, r=83512043
+pos=<-4746686,7220292,36352955>, r=56456756
+pos=<-41654376,19786057,19343708>, r=67288631
+pos=<1922099,27757580,41900851>, r=54241003
+pos=<-26106391,24039403,26547536>, r=63198013
+pos=<51909359,39040191,-23550203>, r=91922720
+pos=<-31883928,19174319,16232194>, r=53794951
+pos=<-18111135,30225071,45988610>, r=80829323
+pos=<3462246,47341625,37911288>, r=68295249
+pos=<-21209912,38169565,9849441>, r=64886854
+pos=<6102482,22969953,33637142>, r=81164151
+pos=<-29094168,39024191,39912640>, r=94535485
+pos=<-39564562,32389487,30231504>, r=88690284
+pos=<-67583890,19937793,12733832>, r=90144701
+pos=<7439437,57446155,-13141269>, r=78504860
+pos=<-54408920,23429475,30144431>, r=94487312
+pos=<-10624959,-24967742,18153400>, r=76323157
+pos=<12734649,19654835,91633145>, r=85057827
+pos=<-56228792,19543674,15561625>, r=77838600
+pos=<15026550,57405761,23405682>, r=52289452
+pos=<27351030,54217690,54477028>, r=84616383
+pos=<-68713220,25606980,15944349>, r=96769209
+pos=<-30253382,21119758,49579286>, r=87456986
+pos=<72470546,37615120,36682292>, r=95338611
+pos=<-23442457,46448205,29234726>, r=85630024
+pos=<-64753842,20575209,20028988>, r=91862608
+pos=<20323082,6325662,-8079952>, r=76961994
+pos=<-26170337,33385922,-10491192>, r=85404272
+pos=<-52804067,25148869,108304>, r=93201456
+pos=<-20702532,36644362,25833714>, r=69685480
+pos=<33128385,33827761,35569293>, r=51096087
+pos=<-12064211,37526617,44613944>, r=80709288
+pos=<9630045,22977213,18513512>, r=80478689
+pos=<-14392533,80378859,17739526>, r=99015587
+pos=<-49554130,28102711,16264768>, r=80426120
+pos=<48585462,32333864,6067470>, r=52274820
+pos=<-44936102,24457282,34647424>, r=90545425
+pos=<17122051,54400067,68615061>, r=92397800
+pos=<75552009,24688336,25232742>, r=74043933
+pos=<65186315,20007774,30585805>, r=64350909
+pos=<5340143,42024065,30890977>, r=54079390
+pos=<3712081,21960600,74435408>, r=79188707
+pos=<-62518276,28719133,19309345>, r=97051400
+pos=<-49605073,22357227,33119716>, r=91586537
+pos=<9877346,44765934,-10669419>, r=60914884
+pos=<-50230141,26866736,13200558>, r=79253162
+pos=<-22215771,32434741,30683085>, r=71838135
+pos=<-10906666,39818153,16653597>, r=53882902
+pos=<200316,48815486,2307025>, r=61665054
+pos=<13364476,52796960,27008332>, r=52945321
+pos=<-54575005,27929316,17269683>, r=86278491
+pos=<-14148755,-20815963,34299290>, r=91841062
+pos=<95409270,22369477,18287131>, r=84636677
+pos=<-65267629,21281804,15753376>, r=88807303
+pos=<-22514300,25592776,11522778>, r=51941167
+pos=<9677229,38312590,56940780>, r=72080637
+pos=<-40480496,22683540,19750214>, r=69418850
+pos=<76753853,21058506,26284253>, r=72667246
+pos=<-69923232,19983905,11131784>, r=94132449
+pos=<79556109,7675997,11456181>, r=73919449
+pos=<21208276,30862408,17745997>, r=86339866
+pos=<87231055,35027756,23394348>, r=94223791
+pos=<2965591,52968786,54766980>, r=91274775
+pos=<38830705,39285181,-1298152>, r=56836999
+pos=<-17209565,53273886,16654161>, r=73642365
+pos=<-2091822,48531205,-18708870>, r=84688726
+pos=<16575730,16270182,88424011>, r=78155145
+pos=<-26211447,19989219,47697421>, r=80402727
+pos=<-11614478,41470816,27828438>, r=67418282
+pos=<13613315,25442730,30298476>, r=83389361
+pos=<-30997491,24351980,2860498>, r=67845791
+pos=<13174294,55008036,60365978>, r=88704210
+pos=<-66200460,25172709,19700202>, r=97577966
+pos=<-15575674,32215476,33481040>, r=67776725
+pos=<-828646,23717102,74053120>, r=85103369
+pos=<67082441,21554528,18209610>, r=55417358
+pos=<35289001,31964654,54452852>, r=70277186
+pos=<-37626603,22684178,39369744>, r=86185050
+pos=<-36476135,6661820,6119562>, r=75124212
+pos=<61412808,41356618,26246311>, r=77586503
+pos=<4349364,52113911,21313109>, r=55582147
+pos=<-29126413,10831829,-9489737>, r=79213693
+pos=<-35510131,33936453,1498226>, r=83305208
+pos=<10711803,56327977,54436248>, r=86556930
+pos=<-10986495,33479453,25386321>, r=56356771
+pos=<10839021,29615135,45987360>, r=51268004
+pos=<134500140,30697932,95120704>, r=79464034
+pos=<-9996928,15180732,43776070>, r=61169366
+pos=<8560796,52431760,-7692351>, r=66920135
+pos=<42869087,54159132,19806116>, r=65405066
+pos=<-28125179,32576762,30236596>, r=77443109
+pos=<29213882,72974856,23572361>, r=74331743
+pos=<6463341,35794744,82950747>, r=98787106
+pos=<16998364,43204188,42725887>, r=55436199
+pos=<-47809700,12764998,-4752711>, r=91227027
+pos=<-23667302,38222857,32520281>, r=80914972
+pos=<5018049,31868090,-42498386>, r=84705478
+pos=<-32740338,-48761,20145292>, r=75511435
+pos=<-31998062,16839567,18784325>, r=56519909
+pos=<14621953,56185701,34899979>, r=62968568
+pos=<-68866996,21585739,21022094>, r=97979315
+pos=<9867568,19329463,37100578>, r=77257682
+pos=<-62123211,22203859,11130571>, r=88553520
+pos=<77221580,24094107,16734917>, r=66621475
+pos=<-1821246,146278874,71332633>, r=50603635
+pos=<15695762,19623508,-12504375>, r=86176231
+pos=<-38748833,46005618,27720062>, r=98979148
+pos=<-9826408,21686640,52087370>, r=70105063
+pos=<-28740105,20621331,5646218>, r=59072137
+pos=<-18171799,45015675,39474938>, r=89167248
+pos=<-33947976,21584199,13397637>, r=57491357
+pos=<26513145,26087751,16685669>, r=56323404
+pos=<-11751760,34546347,65029270>, r=97832098
+pos=<14822609,38121041,89463361>, r=99266326
+pos=<6464839,73295099,6749637>, r=75437439
+pos=<-4524725,16467567,-11269014>, r=50755566
+pos=<-19329442,50791069,9638799>, r=75838609
+pos=<-45372988,21193667,17794822>, r=70866131
+pos=<-31731289,30869255,-7007932>, r=84965292
+pos=<-5071639,-10542190,19965497>, r=58156487
+pos=<68796747,14374123,28637783>, r=67703608
+pos=<43258818,56443114,32418999>, r=80691777
+pos=<-22503864,21597977,28543654>, r=59149994
+pos=<-22981706,11224220,23379917>, r=57714456
+pos=<2792705,55768393,41537614>, r=81018125
+pos=<-6343063,27952551,33183295>, r=53983437
+pos=<-7766640,21346094,16368100>, r=68588634
+pos=<49849537,24458794,42556872>, r=65435898
+pos=<56858459,-22045733,35625937>, r=99173332
+pos=<-39774035,21064462,25775707>, r=73118739
+pos=<-14993990,27469926,35619277>, r=64587679
+pos=<-43351704,3130025,24260072>, r=87058819
+pos=<30061462,65144305,50729458>, r=94505853
+pos=<-61832878,7785572,13000354>, r=92476522
+pos=<-52901190,20673282,18732962>, r=78812385
+pos=<-8571540,24699403,54905820>, r=74681313
+pos=<-37946319,34840656,20383740>, r=79675262
+pos=<-19838087,37351260,33253636>, r=76947568
+pos=<100847962,20524708,19206622>, r=89149925
+pos=<14455559,35233625,53700177>, r=60982791
+pos=<-20056662,56796383,34607132>, r=97964811
+pos=<9335162,3248985,85305624>, r=95298869
+pos=<88553571,14676264,15644268>, r=74164948
+pos=<-106610070,80008545,33528869>, r=99682821
+pos=<28264958,48650255,58033061>, r=83518914
+pos=<-17992625,45110551,48871141>, r=98478898
+pos=<69351949,5510582,25068156>, r=73552817
+pos=<-5705614,71653685,27728234>, r=91592107
+pos=<-17999747,25607396,21269038>, r=51380732
+pos=<-3205888,73012435,18538659>, r=81261635
+pos=<-3592057,25690835,56551659>, r=72339061
+pos=<1124658,24329061,19167822>, r=81587270
+pos=<-20802881,24668833,19823447>, r=51799858
+pos=<91853134,23414084,23045414>, r=86883301
+pos=<11308256,34015699,47134981>, r=56346912
+pos=<23941826,-24682269,22127619>, r=55394984
+pos=<2696109,67183426,43559924>, r=94552230
+pos=<46044170,37177299,36751145>, r=68543436
+pos=<6606434,21482473,34492952>, r=57815762
+pos=<34285517,19655024,15856185>, r=51306898
+pos=<8778135,22138548,67180627>, r=67045678
+pos=<30436629,33960173,-25071971>, r=66891736
+pos=<16129791,36219589,46557642>, r=53152020
+pos=<-4088749,62141812,2429997>, r=79157386
+pos=<-34401835,49197576,25435679>, r=95539930
+pos=<11676506,33753700,53141032>, r=61722792
+pos=<32707329,25861894,50187135>, r=57326997
+pos=<-8599604,-43075779,15894303>, r=90146754
+pos=<20965926,36360906,24401829>, r=60041660
+pos=<44776021,24251979,17223936>, r=75326241
+pos=<62538446,-4068536,22259080>, r=73509296
+pos=<-7250951,19937879,63480768>, r=77174204
+pos=<-33687444,28446020,21754771>, r=70392915
+pos=<-32676864,15046530,46773204>, r=86980581
+pos=<-12140995,20215852,-21775729>, r=69489510
+pos=<-26276846,42664168,23044658>, r=78490158
+pos=<-30338799,29183588,1436942>, r=73442811
+pos=<-42311395,21717480,40964276>, r=91497925
+pos=<-5752305,26483527,44945017>, r=63685392
+pos=<-2020739,26348098,59043072>, r=73916445
+pos=<2305442,27181675,9864180>, r=89847253
+pos=<24031909,57187890,922953>, r=57719994
+pos=<46081152,40431021,16031959>, r=51114769
+pos=<-4539533,61028721,19015725>, r=71088652
+pos=<62566597,-5740225,-11453959>, r=93256375
+pos=<295284,6340891,81950484>, r=97891413
+pos=<2170373,-18887927,23386747>, r=62681625
+pos=<16898502,31764641,87046268>, r=88416905
+pos=<90040619,9753129,18620337>, r=83551175
+pos=<8872743,56602255,34190034>, r=68424040
+pos=<-8360958,33716133,-14819718>, r=72253659
+pos=<12968548,23384948,-24475755>, r=50249145
+pos=<35437457,57555383,49108259>, r=90671747
+pos=<-27803063,19643981,32092866>, r=66044885
+pos=<14060705,56855419,28247979>, r=57547688
+pos=<417927,83403863,8295330>, r=90047426
+pos=<-36582718,34379125,30821956>, r=88288288
+pos=<-35619486,11529623,39689639>, r=86356544
+pos=<82748832,99851221,-51099242>, r=65444407
+pos=<-90072183,80613801,47426645>, r=80676265
+pos=<-1271823,10095366,17846927>, r=67689220
+pos=<8326508,65054647,52062355>, r=95295436
+pos=<-38016508,6924638,34071203>, r=87740549
+pos=<-5881230,47676110,49334906>, r=89396767
+pos=<68508362,-104765399,44390710>, r=94844086
+pos=<-10930711,53983679,12362749>, r=67908460
+pos=<56861269,50887818,561833>, r=84610333
+pos=<25884466,19111137,22613478>, r=70236386
+pos=<-38212755,32606517,34127984>, r=91451744
+pos=<32091711,58393197,11931508>, r=55976432
+pos=<-23846311,19311592,5477269>, r=53037450
+pos=<-23489350,19530867,21494536>, r=51019263
+pos=<31831575,50320484,45958501>, r=76681195
+pos=<36716427,29966616,76056381>, r=91310057
+pos=<15539489,43451622,-44204703>, r=87473706
+pos=<-34494856,23415098,16643666>, r=61058111
+pos=<79178949,48371683,11748656>, r=93225201
+pos=<-58324015,68454915,102896082>, r=95619434
+pos=<-41183195,37699049,16783713>, r=82170443
+pos=<-38927213,24332689,23063864>, r=72828452
+pos=<96025486,29641732,21715783>, r=95953843
+pos=<-6358110,21300784,-9752831>, r=52768639
+pos=<-144829223,-16756024,24569177>, r=67108955
+pos=<28240627,24988848,16808305>, r=50754384
+pos=<-21532777,329375,19394556>, r=63175000
+pos=<21667519,-10323661,50648697>, r=67283068
+pos=<13298150,24778686,17403411>, r=74528572
+pos=<102338959,19111655,22206798>, r=92228049
+pos=<-41176453,19079007,26527956>, r=73288226
+pos=<16641085,37471443,-40874890>, r=77062359
+pos=<-7418842,26247964,36463431>, r=56634775
+pos=<4165723,31234115,-33759555>, r=76185154
+pos=<10594331,31010219,17574041>, r=69525535
+pos=<-8563545,45006983,16239332>, r=56314504
+pos=<55005132,25689304,-4001151>, r=62118630
+pos=<-4376534,52632021,26338656>, r=69852027
+pos=<8256209,28653188,52612341>, r=59513806
+pos=<46657132,71021890,29481044>, r=95730698
+pos=<13902637,65216519,-26093567>, r=92764308
+pos=<71103266,21154299,43358351>, r=84186559
+pos=<17345681,82229516,16074509>, r=67462830
+pos=<-5538200,149534,38625466>, r=66591223
+pos=<71497360,21522866,10941885>, r=59501504
+pos=<-63477676,22817913,18669859>, r=91470041
+pos=<-17105355,31160955,-2071889>, r=65695126
+pos=<22394541,65900397,61205985>, r=98071593
+pos=<13252005,37181642,54336851>, r=64771440
+pos=<-21715438,44948330,15601037>, r=68769444
+pos=<-27439271,24322148,36227707>, r=74493911
+pos=<5766439,71076250,21707927>, r=73522290
+pos=<11851540,103523253,16424326>, r=94600531
+pos=<-35936364,25818095,26014260>, r=74273573
+pos=<-31874422,35762630,36035888>, r=90177435
+pos=<55512974,2428965,29430672>, r=67157872
+pos=<-16925035,64964840,30342498>, r=98736899
+pos=<-26179507,33773569,50201669>, r=96659452
+pos=<-10420798,28282193,40297782>, r=65505632
+pos=<-3536358,68354169,9952516>, r=77295243
+pos=<-17670714,26747732,24777656>, r=55700588
+pos=<6006248,70211081,27579531>, r=78289082
+pos=<76047518,27546733,18344623>, r=70509548
+pos=<-43757210,23682110,16509255>, r=70453074
+pos=<-28255216,15484963,7525602>, r=56674024
+pos=<20860911,12175042,42404586>, r=59595480
+pos=<-5198999,37158298,22027507>, r=50889389
+pos=<60191585,25695404,24939164>, r=59396853
+pos=<48113664,13574846,61013966>, r=80195985
+pos=<43935960,24809476,62008671>, r=79324814
+pos=<-7532169,-342364,24711284>, r=55162861
+pos=<24181680,36592240,21498336>, r=60711278
+pos=<47949585,42292822,24863047>, r=63676574
+pos=<15092860,40346420,44802794>, r=56560840
+pos=<16400870,43134632,41955309>, r=55193707
+pos=<-37242426,26461429,-1894245>, r=80954961
+pos=<-26938628,36292392,20686361>, r=70422019
+pos=<-8834715,29451092,-9608029>, r=63250800
+pos=<-18609214,31077799,52191567>, r=88383397
+pos=<-54750977,-415380,146275064>, r=92249294
+pos=<-2023401,33151759,66653502>, r=88333273
+pos=<36331134,-53331987,20335299>, r=94641605
+pos=<3150569,8571310,18986143>, r=78575480
+pos=<-45306597,19790214,19479629>, r=71081153
+pos=<-69358363,11975595,17171396>, r=97131215
+pos=<-16550534,28860936,50138804>, r=82054992
+pos=<6540170,27783511,43037271>, r=50785208
+pos=<-4945713,24195473,37884442>, r=53530143
+pos=<9665920,15733964,88204874>, r=85382098
+pos=<-1598376,27249205,51463568>, r=66815714
+pos=<10723020,60360313,52155729>, r=88297513
+pos=<-18243939,40517354,-5526765>, r=79644926
+pos=<-16903445,29937623,51744334>, r=85090409
+pos=<-11790426,31944298,23453777>, r=53692989
+pos=<52792545,36664182,45243704>, r=83271149
+pos=<24556891,40338428,38402988>, r=51868941
+pos=<44286570,22509374,70796569>, r=86163539
+pos=<5473867,72973258,22380418>, r=76384598
+pos=<-16972413,36311578,27172586>, r=66961122
+pos=<-34633201,33960550,15491358>, r=70589714
+pos=<17467491,6542097,72157213>, r=70725146
+pos=<5665746,74783281,156355889>, r=93957287
+pos=<-64172069,21730649,15682463>, r=88089742
+pos=<2685201,65235733,-967922>, r=78875377
+pos=<-4257607,40834124,46163206>, r=77759912
+pos=<-39668861,20523915,29479434>, r=76177140
+pos=<-49325139,42666448,21057925>, r=99554240
+pos=<98241678,14728921,1882426>, r=95125898
+pos=<-2644115,44049079,26435520>, r=59633251
+pos=<-5245833,-3360914,37676784>, r=68860588
+pos=<-19051770,48004620,18222322>, r=71783198
+pos=<15522991,29258936,16887250>, r=97447371
+pos=<-10295907,19528520,52301244>, r=68630727
+pos=<-8656765,27943662,29722627>, r=52827675
+pos=<59415926,33090586,24195985>, r=65273131
+pos=<-35763152,27898612,48223548>, r=98389798
+pos=<-47071475,25195001,20676619>, r=79447640
+pos=<-63120767,11092112,21759772>, r=96365550
+pos=<-37364557,27395894,11379897>, r=68737389
+pos=<-47572398,19204893,23825750>, r=77107834
+pos=<16046503,13033383,62015642>, r=55513298
+pos=<5239194,66468425,51304888>, r=99039262
+pos=<-15721321,23334078,32850424>, r=58410314
+pos=<38464312,4946271,48844014>, r=67005316
+pos=<-33000168,28521867,24183414>, r=72209965
+pos=<15527836,67904701,31845123>, r=70726519
+pos=<-19145592,74797230,18302643>, r=98749957
+pos=<40215058,467039,69929736>, r=94321349
+pos=<53124805,30481272,-13927176>, r=74956268
+pos=<3055359,22280316,23455679>, r=98564734
+pos=<-69144912,15804863,13317273>, r=91452305
+pos=<-50485481,20198161,22640058>, r=79828203
+pos=<-44840761,29032485,17379908>, r=77757716
+pos=<16378973,56765959,24926859>, r=51818388
+pos=<-17553918,15277290,27233173>, r=52087185
+pos=<-64946352,26965066,20597486>, r=99013460
+pos=<17544279,42036181,85676484>, r=96673021
+pos=<-44537995,33840688,21361315>, r=86244625
+pos=<-42416632,23970409,15495297>, r=68386871
+pos=<11016987,13665432,18936244>, r=73272543
+pos=<1818286,32017445,40233147>, r=56936996
+pos=<73372649,3393998,33339987>, r=87961823
+pos=<67239353,26435357,26306861>, r=68552199
+pos=<-702449,24351927,9579495>, r=62447833
+pos=<-14309099,30607733,19856069>, r=51277442
+pos=<4342531,20264028,20238911>, r=56908180
+pos=<11944158,41897050,-9302532>, r=54612301
+pos=<5887903,33391949,68189676>, r=82198605
+pos=<53037552,55310238,26029358>, r=82947857
+pos=<4107719,30759711,39616711>, r=52773538
+pos=<-13711814,3268039,65928599>, r=98949471
+pos=<65545186,28044108,15927270>, r=58087194
+pos=<1107016,26686911,83704606>, r=95789369
+pos=<-39291923,20846322,16375602>, r=63018380
+pos=<-30641202,27508544,37593684>, r=82248558
+pos=<72639472,12135185,22544085>, r=67691812
+pos=<-18725087,53120747,722243>, r=86480451
+pos=<-15843951,4658230,24716115>, r=58478884
+pos=<74275221,4681765,34221481>, r=88458621
+pos=<-26159772,44732593,18361408>, r=75758298
+pos=<14949502,26487956,26415586>, r=62132541
+pos=<-34570002,23276690,28852703>, r=73203902
+pos=<2046940,37986116,65446402>, r=87890088
+pos=<-17483875,54922771,8839294>, r=78924509
+pos=<-52506611,8292750,23400648>, r=90191875
+pos=<-2229132,33440911,40144270>, r=62318869
+pos=<25836134,9994730,15645938>, r=58321360
+pos=<-3058146,36739844,30907065>, r=57209669
+pos=<71455988,21543831,17532661>, r=59103140
+pos=<17897049,12116771,58414547>, r=50977789
+pos=<54096854,21189608,35240202>, r=59097602
+pos=<-22459330,38427126,-3683854>, r=79927688
+pos=<-60942270,23436516,18519800>, r=89403078
+pos=<-11133185,19747844,15873036>, r=51561367
+pos=<-36142665,30056754,26389945>, r=79093948
+pos=<-36397637,13146861,16273692>, r=62101578
+pos=<1585519,68315301,46579817>, r=99814336
+pos=<-72979404,19297219,18208512>, r=96989726
+pos=<-59149668,7987305,18051406>, r=91790914
+pos=<-21819672,59470687,18222433>, r=86017284
+pos=<-3121147,38524674,44657590>, r=72807944
+pos=<-58570148,20860115,5708865>, r=89078277
+pos=<-19133699,38762621,21243570>, r=65644376
+pos=<17653602,22873680,-45967094>, r=66544144
+pos=<-23108032,33331067,23219313>, r=66163005
+pos=<15672142,68668549,49729405>, r=89230416
+pos=<35927908,42218058,56783546>, r=83500228
+pos=<63056981,-13293942,-4560093>, r=94406708
+pos=<11776318,-27618281,20446064>, r=58865084
+pos=<16835574,46986020,35667984>, r=52323155
+pos=<14387376,40926467,-26122046>, r=68018092
+pos=<82717827,15419121,16380535>, r=68322496
+pos=<-3372397,60315528,1502937>, r=77541898
+pos=<224178065,22404335,9840502>, r=95030030
+pos=<10525392,23373047,33973198>, r=85137995
+pos=<12745453,32823279,52110534>, r=58693153
+pos=<7702406,32069177,-10716268>, r=50439888
+pos=<11724329,10575335,16223487>, r=50979484
+pos=<-40575085,28203139,16294657>, r=71577530
+pos=<-39035522,20087752,28896810>, r=74524591
+pos=<13054726,30035255,-32404862>, r=64742255
+pos=<-8558783,55103660,44503931>, r=94671214
+pos=<-57460532,15407640,28388333>, r=93018269
+pos=<-5882594,47074540,19052333>, r=58514343
+pos=<-9050931,46031875,21056959>, r=62644255
+pos=<53557157,918690,31290721>, r=68572532
+pos=<-23453548,48093870,15645015>, r=73696997
+pos=<11139730,45347600,-22608640>, r=72173339
+pos=<100519983,22436948,17314398>, r=88841960
+pos=<9749341,33596850,47353067>, r=57705152
+pos=<-19660534,45304545,18101278>, r=69570878
+pos=<-29422623,27864323,39727736>, r=83519196
+pos=<14912797,31806798,63843436>, r=67241924
+pos=<-37584351,27640240,27952037>, r=79681301
+pos=<-42464627,37953918,15821915>, r=82745329
+pos=<-20305422,14407025,36175899>, r=64651536
+pos=<-33712086,29537587,22956495>, r=72710784
+pos=<17592936,61182312,-18214532>, r=77160947
+pos=<32687775,-33258766,47744694>, r=98334515
+pos=<2611416,-31653634,22244081>, r=73863412
+pos=<63937441,19860245,26352526>, r=58720861
+pos=<-26000222,29942747,16282576>, r=58730144
+pos=<72041493,22235632,32098242>, r=74946060
+pos=<83506282,25085928,5569924>, r=80445250
+pos=<21856922,54769509,-7323103>, r=61372504
+pos=<-6785507,50769402,5274344>, r=67637491
+pos=<-49054840,25708393,28758541>, r=90026280
+pos=<41453758,36161967,-5565676>, r=60604598
+pos=<23957380,98491976,25197508>, r=96217492
+pos=<-1918997,40872712,56020837>, r=85317037
+pos=<11560897,-13417473,35667589>, r=60101227
+pos=<16095547,34033277,17499405>, r=63373349
+pos=<19992290,39104546,51635522>, r=59303173
+pos=<-9543243,24703883,55439601>, r=76191319
+pos=<-2629657,61222040,-9027259>, r=88235881
+pos=<-7954438,26409135,71841366>, r=92709428
+pos=<56100040,35718903,-2943841>, r=72186148
+pos=<15194014,34724058,51380300>, r=57415060
+pos=<5149757,32879120,57059018>, r=71292927
+pos=<-45117989,31717981,24626933>, r=87967509
+pos=<-49525793,27631358,31437399>, r=95099113
+pos=<-36306848,22065328,23040435>, r=67917382
+pos=<7338739,19359924,28927676>, r=76399015
+pos=<15722921,22564620,67554210>, r=60900563
+pos=<-60668204,19293726,15539593>, r=82006045
+pos=<-11641123,36130019,24895482>, r=59171132
+pos=<20312628,-18082245,-38613762>, r=90504280
+pos=<37497722,19085334,-24743751>, r=58749886
+pos=<-192579537,20345121,16842397>, r=97756688
+pos=<-10677857,19600465,55979964>, r=72762775
+pos=<42525405,33414203,47776287>, r=72286523
+pos=<15706619,26835579,16458822>, r=56518320
+pos=<15809191,84768944,40385209>, r=95849545
+pos=<10773970,66999475,-2142936>, r=73725278
+pos=<-25063202,27449660,23041100>, r=62058628
+pos=<7277029,-12837408,22286000>, r=50423549
+pos=<2139203,4602136,-39115521>, r=83803573
+pos=<-1206701,-33067867,36638247>, r=93489865
+pos=<17199864,24463876,62720466>, r=56488989
+pos=<12800652,42177849,45685273>, r=61567044
+pos=<-29617960,28338878,17474860>, r=61936672
+pos=<56231418,49001563,-917997>, r=83574259
+pos=<-1100672,59918278,29611507>, r=77135099
+pos=<2840100,24064715,26419467>, r=66185333
+pos=<-25745230,27768519,59674568>, r=99693246
+pos=<4013710,42655821,68735864>, r=93882614
+pos=<28190191,-11448870,33663870>, r=57946149
+pos=<14317415,36836782,73815992>, r=82839849
+pos=<-1902327,4911366,42167513>, r=61735635
+pos=<-20143004,25972869,25423419>, r=58044185
+pos=<16110265,39732923,-36507950>, r=75487869
+pos=<-22915802,34700389,24925277>, r=69045988
+pos=<-45086387,19247909,16794241>, r=67633059
+pos=<-30742321,27658789,42275051>, r=87180746
+pos=<-8483151,74444239,17371943>, r=86803935
+pos=<6428243,27088246,64397425>, r=71561996
+pos=<24533884,21791651,19666481>, r=72843158
+pos=<-30388692,37610995,12980780>, r=70375724
+pos=<-28467247,27750195,52587545>, r=95309521
+pos=<62548627,-1513034,38960561>, r=87665573
+pos=<2633017,33111177,81587141>, r=98570148
+pos=<-39944129,40403838,18264526>, r=85117165
+pos=<-14561007,65391707,20339025>, r=86796234
+pos=<-2017942,80879578,25890819>, r=95292839
+pos=<6288287,60919820,30914954>, r=72050978
+pos=<27282061,78333102,39773596>, r=93959479
+pos=<14788668,20798979,42072660>, r=50563382
+pos=<-42729331,29603434,17220290>, r=76057756
+pos=<10075818,55209552,18851111>, r=50489387
+pos=<6292121,19851428,17294956>, r=89344416
+pos=<-92577266,-44957254,41247834>, r=92002848
+pos=<-12891027,80820196,16147620>, r=96363329
+pos=<25731530,28064889,51145333>, r=53512398
+pos=<-45635644,23504114,5526602>, r=78970711
+pos=<13775814,63239460,57446403>, r=93414566
+pos=<17806166,27152615,22686791>, r=53140461
+pos=<10224826,22444410,21024630>, r=81367756
+pos=<23171186,28174511,79079304>, r=78995647
+pos=<-52226525,22456043,25035287>, r=86222449
+pos=<-10363788,31948809,28489940>, r=57307103
+pos=<14306966,38581115,-13983082>, r=53614065
+pos=<10664208,51477968,48267682>, r=75585948
+pos=<31169459,-17095102,41819338>, r=74727115
+pos=<-809520,69793205,18054666>, r=75161960
+pos=<-20304245,21918733,46600435>, r=75327972
+pos=<-6188774,19267409,17599622>, r=85788293
+pos=<-23484420,19370437,33406344>, r=62765687
+pos=<-36162654,8056165,9432272>, r=70104221
+pos=<11436037,29048070,32190088>, r=73021637
+pos=<6483456,22081501,23232660>, r=64032836
+pos=<45571672,39708352,55410440>, r=89261119
+pos=<-3973530,28214854,57251942>, r=75944882
diff --git a/day23.rb b/day23.rb
new file mode 100644
index 0000000..d946376
--- /dev/null
+++ b/day23.rb
@@ -0,0 +1,21 @@
+file = File.read("day23")
+
+bots = file.lines.map { |l|
+  l.scan(/<(-?\d+),(-?\d+),(-?\d+)>.*r=(-?\d+)/).first.map(&:to_i)
+}
+
+strongest = bots.max_by { |x,y,z,w| w }
+
+p bots.count { |x,y,z,w|
+  ((x-strongest[0]).abs +
+   (y-strongest[1]).abs +
+   (z-strongest[2]).abs) <= strongest[3]
+}  # 577
+
+
+p bots.map { |b| b[0] }.sum 
+p bots.map { |b| b[1] }.sum
+p bots.map { |b| b[2] }.sum
+
+#  16933511,19092135,15403726
+# 51429372
diff --git a/day24 b/day24
new file mode 100644
index 0000000..b5339c9
--- /dev/null
+++ b/day24
@@ -0,0 +1,23 @@
+Immune System:
+1466 units each with 7549 hit points (weak to fire, bludgeoning) with an attack that does 49 fire damage at initiative 1
+8647 units each with 6003 hit points (weak to radiation, cold) with an attack that does 6 cold damage at initiative 3
+2777 units each with 7460 hit points (weak to fire; immune to slashing) with an attack that does 24 bludgeoning damage at initiative 7
+470 units each with 1938 hit points (weak to fire, cold) with an attack that does 40 cold damage at initiative 18
+4203 units each with 6288 hit points (immune to fire) with an attack that does 13 cold damage at initiative 9
+2975 units each with 4211 hit points (immune to slashing) with an attack that does 14 slashing damage at initiative 20
+123 units each with 10083 hit points (immune to radiation; weak to fire) with an attack that does 777 bludgeoning damage at initiative 15
+3455 units each with 6391 hit points (weak to radiation, slashing; immune to cold, bludgeoning) with an attack that does 16 bludgeoning damage at initiative 19
+4323 units each with 4880 hit points (weak to cold; immune to radiation) with an attack that does 10 slashing damage at initiative 14
+1586 units each with 3567 hit points (weak to bludgeoning, radiation; immune to slashing, cold) with an attack that does 17 radiation damage at initiative 4
+
+Infection:
+5380 units each with 18316 hit points with an attack that does 5 slashing damage at initiative 17
+6230 units each with 12274 hit points (weak to slashing) with an attack that does 3 fire damage at initiative 16
+214 units each with 27761 hit points (weak to bludgeoning) with an attack that does 233 fire damage at initiative 11
+1515 units each with 47688 hit points (weak to slashing; immune to radiation) with an attack that does 49 cold damage at initiative 8
+268 units each with 44231 hit points with an attack that does 259 fire damage at initiative 6
+2318 units each with 22996 hit points with an attack that does 18 fire damage at initiative 5
+9492 units each with 19449 hit points (weak to bludgeoning, slashing; immune to cold) with an attack that does 4 radiation damage at initiative 13
+1113 units each with 39287 hit points with an attack that does 69 fire damage at initiative 12
+1382 units each with 15277 hit points (weak to radiation, fire) with an attack that does 19 cold damage at initiative 2
+2101 units each with 25567 hit points with an attack that does 17 slashing damage at initiative 10
diff --git a/day25 b/day25
new file mode 100644
index 0000000..761b364
--- /dev/null
+++ b/day25
@@ -0,0 +1,1315 @@
+-7,1,-6,1
+-4,-2,2,2
+0,-6,-3,-7
+0,5,-4,-2
+-1,-4,4,1
+-3,7,8,1
+-8,-7,4,-8
+-7,8,8,3
+3,-4,-2,-8
+2,4,-7,6
+6,-5,-2,5
+-1,-7,7,0
+5,5,-2,6
+3,4,2,-8
+-6,7,3,-4
+-3,-7,0,7
+-4,0,0,1
+1,8,6,-3
+5,5,-3,-7
+0,3,0,-6
+4,-5,6,4
+-1,7,8,-6
+8,1,-1,-3
+-7,5,-3,-2
+7,3,7,5
+-6,-4,-5,-3
+0,7,-8,-1
+-5,8,-2,-7
+2,8,7,8
+-7,6,-8,-3
+-5,7,0,-2
+5,3,0,-1
+-5,4,0,3
+-8,-8,2,5
+8,5,8,4
+3,5,-5,-7
+-6,-4,-2,-2
+-5,-7,1,5
+-5,0,1,7
+-1,0,0,-7
+5,-5,7,1
+4,-2,-8,4
+-1,-4,6,-1
+-8,-6,5,1
+-2,0,-2,8
+-1,1,-3,2
+4,2,-8,2
+-6,8,8,-3
+6,-3,0,2
+8,-2,8,-8
+-4,0,0,-2
+7,5,0,4
+2,-3,-8,-4
+-7,0,-6,-5
+2,3,-3,-8
+-7,5,-6,-2
+-3,6,2,1
+-3,-3,8,-2
+-6,5,4,7
+-5,7,0,-1
+6,1,7,8
+7,4,4,-8
+6,0,-5,3
+2,-4,-3,-7
+8,0,-7,-5
+6,0,-8,0
+-2,-5,2,-2
+0,-3,5,6
+6,5,2,1
+7,0,6,7
+5,5,0,2
+-3,0,8,-1
+0,1,-7,-4
+-3,-2,-7,-6
+-5,-7,5,-4
+0,-1,-3,4
+-2,-8,2,-1
+7,-2,0,0
+1,-3,3,2
+-2,7,3,6
+6,8,8,2
+8,5,6,0
+-6,-6,3,7
+6,0,8,1
+-1,3,-2,-8
+5,-5,7,0
+-1,-7,4,-5
+6,1,7,0
+-7,0,8,4
+-3,-2,-6,8
+0,7,0,6
+0,-6,-4,5
+4,-4,1,8
+4,-4,-1,4
+3,5,-2,-4
+-3,-8,6,7
+-5,-8,-3,0
+-3,-6,-5,-2
+-2,0,5,-5
+3,-6,8,7
+-7,-1,-1,2
+6,0,7,-2
+-1,-3,0,0
+1,3,-6,0
+-1,-6,-8,-8
+-4,0,-4,-7
+0,0,-1,2
+0,0,0,-4
+2,1,8,5
+-6,0,-8,1
+0,-5,5,0
+-5,1,4,7
+-5,-5,4,5
+4,6,4,6
+4,1,4,-5
+-7,-3,2,0
+2,2,7,0
+1,0,2,1
+-7,-4,4,0
+-4,0,3,-2
+1,-4,-6,6
+4,-4,-3,7
+-8,-6,5,8
+6,5,-8,-6
+3,4,4,-3
+-1,-2,6,-3
+1,0,8,-8
+-2,-3,4,0
+2,8,-3,-3
+3,5,-4,-6
+0,0,6,3
+6,-3,-7,-2
+-2,-4,-7,8
+0,2,3,6
+-3,8,-8,7
+-3,-6,-7,6
+-8,4,1,0
+0,5,0,0
+-2,-5,3,1
+4,-3,-2,-8
+-7,1,-2,0
+-6,-6,-6,-3
+4,-6,3,-1
+7,1,8,-4
+4,8,6,-6
+1,8,-3,2
+3,-6,6,0
+0,8,3,-2
+0,-8,0,-8
+2,5,8,7
+1,5,2,0
+3,0,-2,-1
+7,8,-1,-6
+-2,0,4,-4
+-1,8,-8,-7
+5,4,2,-5
+-6,-5,4,-4
+-8,6,-3,-2
+-4,2,-2,6
+-8,7,2,4
+2,-5,1,-1
+5,6,-4,-2
+-8,1,0,5
+-4,0,-5,-4
+8,5,-8,-7
+-2,-2,5,-8
+5,-4,-7,4
+-2,6,-4,-5
+-5,0,-4,5
+6,-7,-4,1
+-2,-6,1,-7
+1,7,6,0
+-7,1,-2,-1
+2,-3,-7,8
+7,-5,-3,6
+5,5,8,3
+-7,0,-6,2
+-4,-3,-5,-6
+4,6,-3,4
+1,7,-5,1
+-5,-8,2,-3
+4,4,7,-7
+6,-6,-7,5
+0,-7,-3,-6
+-2,-8,-8,-6
+-1,-3,-8,1
+2,0,1,-2
+-3,-6,5,-8
+7,-2,4,0
+-7,-6,-7,-1
+-2,-2,0,2
+8,-1,8,6
+4,2,-7,0
+-5,-5,3,-4
+-3,-6,7,-4
+2,-6,-1,-1
+0,0,3,7
+1,-7,5,2
+-4,-6,5,-6
+5,1,-1,-5
+-6,-2,-8,8
+-3,-7,-3,3
+1,-7,4,7
+1,6,7,0
+0,-7,0,8
+3,4,-7,2
+-4,4,0,4
+-8,7,-8,-6
+0,-8,-8,-8
+1,-6,-2,-4
+-8,1,-1,-7
+0,-3,2,-6
+-2,-8,2,-3
+-6,0,1,0
+2,-7,6,-5
+-8,8,3,7
+2,4,0,1
+5,7,0,3
+2,5,2,8
+-8,5,4,0
+8,-1,0,7
+3,-4,-6,-6
+0,8,-1,-5
+1,8,8,-1
+-1,-5,1,0
+1,4,0,-6
+-7,0,2,5
+-8,-2,-8,1
+-2,2,2,-6
+-6,6,-1,-7
+3,0,-3,-1
+8,5,-7,-4
+7,2,7,0
+-1,0,8,-1
+4,8,7,6
+-4,1,-5,4
+5,0,6,-6
+-7,-2,8,6
+1,1,0,-8
+-4,-1,5,7
+-8,-5,8,-7
+-4,-3,7,3
+4,3,-5,-3
+8,0,4,7
+2,-2,-5,3
+4,-3,7,-2
+2,7,-7,4
+0,2,1,2
+-7,-2,3,2
+8,0,6,-6
+4,-5,0,4
+1,-4,-4,-1
+-6,2,6,1
+-7,4,6,-7
+-3,6,5,1
+0,-5,2,8
+5,7,0,-3
+1,8,-6,-5
+-6,6,-3,-8
+4,-2,0,1
+-3,-5,0,-2
+-6,0,-2,-3
+0,8,-8,0
+-2,-1,-7,-1
+-5,1,-8,8
+-7,-3,-8,-4
+8,0,-1,4
+7,-8,1,0
+-1,5,-8,-4
+0,8,1,6
+6,1,8,3
+8,-3,-5,8
+8,-3,-4,-4
+-5,-3,8,6
+3,0,0,7
+-1,-5,1,7
+-6,-7,7,1
+6,-8,1,-1
+-4,-2,-6,-7
+-1,-3,-3,5
+5,4,-5,-8
+5,8,-4,-5
+-3,7,-8,-6
+-3,-3,5,-8
+-1,-4,-1,7
+7,-8,7,4
+7,0,-3,1
+0,-1,-1,7
+-5,-4,3,8
+-5,7,-1,-4
+-5,6,4,-3
+-2,7,4,1
+4,5,-5,-8
+-6,0,4,0
+0,-4,3,1
+-7,0,-6,0
+-6,-8,-7,2
+6,6,8,-4
+7,5,-8,7
+-8,-7,-1,8
+-7,7,8,1
+-7,4,-7,4
+-3,5,-8,0
+1,7,-5,6
+-6,-7,-6,5
+-4,1,5,7
+-5,-1,-4,8
+3,2,-8,-1
+4,-4,0,0
+3,3,4,0
+-6,4,5,-7
+-8,-3,3,8
+-1,8,6,-4
+0,-5,4,-2
+6,-5,-7,4
+1,-6,4,-5
+-4,0,4,4
+4,-6,1,-3
+6,1,-7,8
+3,-3,0,3
+0,-5,5,-3
+8,-5,-6,1
+-4,-4,-1,2
+-8,5,-7,6
+-4,2,3,-7
+-3,0,-3,-5
+0,-6,4,-3
+8,-6,3,-7
+0,-5,-8,0
+-7,2,-3,-3
+2,5,3,8
+4,8,-2,7
+-7,-3,-2,-2
+7,-7,-5,-8
+5,-6,0,-7
+5,4,6,-2
+-5,-6,0,-8
+-3,1,8,-5
+3,7,-1,3
+8,4,-4,-6
+2,1,-3,3
+-2,-2,8,0
+-1,1,3,5
+-8,-1,3,2
+1,0,0,0
+-8,3,-7,5
+-7,-3,8,4
+1,7,-4,8
+7,3,7,-2
+2,-5,0,8
+5,-7,-4,-6
+7,7,3,8
+2,-5,3,-4
+1,-8,4,0
+4,1,4,-6
+-8,-4,2,4
+1,3,-7,-4
+6,-3,8,-5
+-4,6,7,-5
+8,-5,-6,-1
+-5,-4,-2,7
+0,7,-3,0
+-3,-4,-5,7
+-8,-6,-3,5
+1,0,-7,0
+-6,7,8,-7
+-7,8,3,1
+2,7,-2,3
+2,3,-3,8
+2,-5,0,3
+3,-7,-6,3
+0,-2,1,4
+-1,-6,3,6
+0,-3,-2,-7
+8,0,-7,0
+-6,7,7,-4
+4,0,-4,-4
+0,0,-8,0
+-4,7,7,-1
+5,-1,0,-6
+2,-1,-7,-5
+7,-5,3,2
+7,4,5,-8
+6,5,-2,-3
+0,2,-4,-7
+5,0,6,0
+-6,5,5,-4
+0,2,-5,1
+-4,3,0,2
+-8,-6,-1,-2
+8,-6,0,-7
+-6,-8,6,1
+-8,-8,6,-8
+6,-6,-7,3
+-7,-3,-3,5
+-5,1,6,4
+-8,-6,4,4
+0,6,-5,-1
+-5,8,2,3
+8,-8,-5,-4
+0,-1,-8,-3
+-8,1,6,-1
+-5,-5,0,2
+0,-1,-1,0
+-2,-8,4,-2
+-6,-1,0,8
+2,-2,-3,0
+-6,2,-5,-6
+-8,1,-1,2
+0,-5,-5,5
+-2,5,1,-5
+-3,6,0,-3
+8,2,4,7
+7,1,8,6
+-2,8,4,-6
+-7,-3,2,-4
+0,-1,0,-4
+-5,6,0,8
+8,8,2,0
+-2,-1,-6,-2
+0,6,-3,5
+7,0,5,1
+0,-4,-3,2
+-2,1,-6,5
+4,3,-8,-8
+-3,-8,3,1
+4,7,2,8
+2,6,5,8
+-7,-8,-3,-1
+-7,-4,-8,-3
+2,0,-8,4
+2,2,8,0
+-2,6,-4,-3
+0,2,3,3
+-7,-1,4,-1
+0,6,0,-4
+5,8,5,1
+0,-7,1,-1
+1,2,-7,4
+0,-2,7,-7
+8,0,3,8
+5,0,-6,7
+1,5,1,0
+8,-4,-6,0
+8,-8,3,-5
+6,-8,0,4
+-3,-8,5,-3
+-8,1,-1,-8
+8,6,0,-5
+3,-2,-1,-7
+-7,6,-8,-1
+-6,-3,3,8
+4,-6,-8,-1
+-8,-6,4,3
+4,0,7,0
+-6,7,-6,-6
+-3,5,-4,2
+1,5,-5,0
+7,-2,1,-2
+-1,-1,1,-3
+0,0,-5,6
+2,-2,-3,-5
+6,-8,-1,-8
+1,-6,-3,7
+6,6,-1,5
+-6,0,-3,4
+7,-6,4,-7
+-2,-6,6,0
+3,0,-2,-3
+2,0,-1,-1
+-3,6,-8,6
+-2,7,3,7
+2,6,-2,-5
+0,7,-4,6
+2,-1,2,1
+2,6,-6,3
+1,6,-5,8
+-1,-1,8,5
+-2,5,-4,5
+8,-5,3,-3
+7,0,-2,8
+-6,0,8,0
+3,-3,4,5
+6,-2,2,2
+-4,8,2,-3
+3,6,-5,8
+-1,-8,-5,1
+-7,0,-1,0
+-5,-4,4,8
+-6,-7,1,1
+-6,0,-8,7
+-2,-6,4,2
+-7,8,-6,4
+0,4,0,6
+0,5,4,-5
+3,3,1,-2
+6,3,3,-6
+3,-1,5,-5
+7,-7,-4,4
+-4,0,-7,4
+0,1,-5,-6
+-1,2,5,-5
+3,-8,5,-1
+7,1,6,-6
+-8,-6,-2,0
+-6,0,5,0
+7,-2,7,1
+-6,-2,1,-8
+-1,-8,0,0
+8,0,7,-8
+-7,-2,1,-5
+-6,-5,-1,8
+-3,0,-8,-3
+4,-3,-6,8
+4,-5,8,-8
+-1,1,-8,0
+1,-2,-1,6
+8,5,8,-5
+-4,-5,2,2
+8,-4,-7,5
+-1,8,-6,-6
+-6,1,5,-5
+-7,5,3,6
+6,2,6,-6
+-6,1,8,-1
+7,-2,4,4
+-7,4,-2,-4
+4,7,-4,-6
+3,2,6,7
+-1,8,8,-3
+7,-4,2,7
+-1,6,0,3
+-2,2,-6,5
+4,-7,-8,0
+-6,7,-2,0
+-8,5,1,0
+2,0,4,6
+4,1,-6,0
+2,-7,-7,-5
+8,5,-8,0
+4,-2,0,2
+-4,0,4,0
+-2,8,1,0
+1,8,0,-5
+-2,6,-1,-1
+5,8,-3,7
+-5,-2,-8,-8
+-8,4,2,-7
+6,0,2,-4
+6,4,0,5
+4,-8,4,5
+5,0,0,-6
+3,-2,0,-3
+6,-8,5,6
+5,7,0,-2
+-4,0,-1,0
+0,0,-3,2
+-7,0,2,7
+0,8,-8,-3
+1,3,6,-6
+4,-2,3,-6
+-6,2,-8,-7
+8,8,2,4
+-6,-7,1,8
+5,7,5,0
+6,2,-1,-5
+4,-4,-6,3
+7,-5,5,3
+5,0,-8,0
+2,4,-3,-1
+7,-8,-1,-7
+-1,3,5,-4
+-8,4,-8,6
+6,3,-4,5
+7,4,-4,-4
+-6,0,6,3
+-2,-4,-6,-5
+2,6,-6,8
+-3,-6,-6,5
+-1,0,-6,0
+2,-2,1,-4
+5,4,-8,-8
+4,2,-7,3
+8,0,5,2
+0,8,-8,5
+0,-6,7,6
+-1,-8,-5,3
+2,-8,5,4
+-1,-1,1,4
+-5,0,6,-1
+5,-4,0,-4
+2,8,3,0
+4,7,-5,-3
+4,1,0,-5
+7,-5,-1,3
+0,-4,3,7
+3,2,2,4
+0,-4,-1,-1
+5,-5,5,-2
+8,-3,7,0
+1,0,8,4
+7,-4,-6,-3
+2,4,7,5
+6,-2,2,-2
+-5,2,1,1
+-7,-4,6,7
+5,8,-1,3
+0,-4,2,-1
+8,5,3,-2
+-6,4,2,0
+6,2,-2,3
+2,-2,-6,0
+0,7,-4,4
+-7,8,-6,1
+-6,1,8,-3
+-3,5,-5,-7
+8,8,7,7
+0,7,-7,8
+-5,8,-8,-5
+1,0,4,-5
+8,-8,-6,-1
+1,3,2,-1
+5,7,6,0
+1,-6,-5,-5
+-5,0,3,-1
+-6,2,0,-3
+-8,6,7,0
+2,6,6,5
+-4,5,0,7
+4,-6,-3,-5
+-4,-2,-8,-6
+0,-5,5,6
+-4,0,2,-3
+3,7,3,-8
+-7,-1,-8,2
+8,-3,-1,2
+5,-7,-8,1
+4,2,-6,3
+4,-8,0,6
+-5,7,5,-6
+-3,-3,0,7
+6,0,4,-7
+4,8,0,-8
+5,1,-8,0
+-3,1,-7,2
+-5,-1,3,2
+-7,-3,0,2
+-7,-6,3,6
+0,-7,-5,-8
+-7,0,0,5
+-8,-7,4,8
+7,4,-6,-2
+0,1,3,1
+-2,1,6,3
+4,-2,7,-3
+-3,-2,-1,-3
+8,-4,0,-4
+-1,3,-1,-8
+1,6,-4,5
+1,-7,-6,-3
+0,-3,6,-3
+1,-8,-7,2
+-3,8,-6,5
+-7,-2,-8,6
+-4,4,-8,-2
+4,7,-7,-6
+0,-8,6,3
+-5,-4,0,8
+3,1,-1,-8
+-8,6,5,3
+-8,0,6,-2
+8,0,1,-1
+-2,1,3,4
+4,-8,-3,-8
+0,5,0,6
+-4,-3,-2,8
+0,-2,-7,0
+0,-7,5,5
+-4,-2,-2,-7
+8,8,-6,-6
+-7,-6,1,6
+-7,2,4,-1
+-8,6,-8,-5
+-3,5,-8,5
+8,4,-1,1
+4,8,-7,1
+-2,0,7,3
+-6,-2,-7,1
+8,4,-7,-4
+-5,2,8,-5
+2,-4,5,1
+5,5,-2,-7
+3,5,5,-4
+0,8,0,3
+4,-4,-8,-7
+-2,-5,3,-7
+0,1,-1,6
+5,1,6,-2
+3,-7,2,-5
+4,-4,1,7
+7,-8,-3,4
+0,8,0,4
+5,8,3,-3
+-6,4,-5,3
+-8,-3,-1,7
+1,8,-1,-1
+0,-3,0,-5
+0,6,1,-7
+3,1,-3,-8
+-7,-8,8,0
+-4,-1,-7,-3
+6,7,2,6
+2,-8,8,-7
+2,-8,-3,8
+-6,-6,8,7
+-8,4,3,-8
+2,8,-3,6
+4,-6,0,1
+6,0,4,-1
+-6,-5,3,3
+-5,-2,-4,7
+-6,0,-7,3
+8,4,0,0
+0,-2,1,-1
+-4,8,1,5
+8,1,4,4
+-5,5,0,3
+-4,-6,8,-1
+-8,1,-7,6
+6,-6,2,6
+0,-3,-5,1
+-6,-2,-1,-7
+8,3,1,0
+-1,1,-1,2
+-4,-4,0,-7
+-7,7,4,-5
+4,7,2,2
+8,2,-1,-7
+1,5,-5,-1
+7,0,-7,-6
+-5,-2,4,4
+1,0,-4,2
+4,0,5,-5
+-6,2,-2,2
+6,6,0,8
+0,4,2,-3
+-5,2,4,2
+4,0,2,1
+0,-1,1,2
+-8,-3,-7,3
+-4,2,6,4
+0,-2,2,2
+1,2,-1,5
+5,-4,-4,3
+-2,-6,-8,-8
+1,-2,0,-5
+8,1,-7,0
+2,0,2,-7
+-3,0,-1,-1
+0,8,-3,-6
+-4,8,1,1
+0,7,-7,-4
+6,-1,1,1
+-1,8,4,2
+8,6,-3,-7
+2,-4,8,-2
+-8,1,3,-2
+0,5,-3,-6
+7,2,0,-1
+6,8,-2,-8
+3,-2,6,4
+-6,5,1,-7
+7,0,-4,-2
+-3,2,6,2
+-8,8,-1,5
+7,-8,-5,3
+7,-1,1,-1
+-1,0,8,-7
+2,-5,2,-1
+-2,1,3,7
+-5,0,-6,4
+-8,8,-5,3
+0,-1,4,-6
+0,-4,-7,8
+-8,7,6,-4
+4,-4,6,-1
+8,2,0,-5
+8,6,3,-5
+-1,-3,1,-6
+-7,-1,7,-6
+4,0,2,7
+1,-8,-3,-1
+-6,5,1,-3
+7,-7,2,7
+-6,-6,-5,-2
+8,-7,0,7
+5,-4,-2,0
+-7,-4,5,-1
+-6,-7,-8,2
+-7,-2,-6,-5
+-5,4,-8,-5
+-2,7,-2,7
+2,-1,-5,-3
+-8,-8,-3,-7
+3,3,1,-8
+5,-8,-2,7
+-8,7,6,-8
+7,4,8,-6
+5,6,-3,5
+-7,-1,1,4
+4,-4,7,1
+-7,-7,0,3
+0,-1,0,-3
+7,-7,-1,3
+0,-7,4,4
+-3,-4,2,2
+-8,-5,2,-2
+6,-5,-7,-3
+1,2,7,-8
+8,6,0,0
+-3,-2,-3,3
+4,-2,7,-8
+3,-3,-2,7
+-3,-6,-6,4
+5,8,7,-5
+-1,-2,6,-1
+7,1,2,-2
+-7,0,3,0
+-1,4,5,0
+0,8,-6,-2
+-2,0,-1,-2
+2,1,1,7
+5,-1,1,8
+-2,-1,-2,0
+0,-7,-4,7
+0,-5,2,5
+0,3,-6,4
+8,-3,3,-7
+-7,8,3,5
+-7,8,-3,5
+2,0,7,6
+2,5,2,-2
+8,2,-7,1
+6,8,-8,-5
+-5,7,-2,-7
+8,-4,5,2
+5,-3,-1,4
+-7,8,1,6
+0,0,5,5
+-2,0,-4,4
+8,-6,7,-3
+1,-7,-5,7
+0,-8,7,-2
+-1,0,-6,6
+-6,-7,2,7
+5,6,-4,-7
+-1,3,1,-1
+-4,2,-6,7
+4,-5,-8,-5
+-8,5,-4,-7
+-3,-7,0,4
+1,8,-6,-6
+4,5,-3,4
+0,4,-7,-5
+2,-2,-4,5
+2,1,-1,6
+-6,-2,1,-4
+-2,-3,-1,6
+8,2,1,-7
+0,4,8,2
+2,-8,3,4
+2,2,3,-4
+6,8,-1,3
+4,4,-2,0
+-6,-5,0,-6
+1,-7,-6,6
+6,6,2,7
+4,4,0,-2
+0,5,-6,7
+-1,0,4,-4
+0,7,-7,6
+1,0,0,-8
+-4,5,6,-3
+1,-5,-8,0
+4,-1,7,-5
+-1,6,0,-2
+-6,5,-6,-6
+-5,4,0,4
+5,-6,-8,2
+2,0,5,1
+-6,-6,3,0
+2,5,0,-2
+1,-1,2,3
+-2,-7,5,2
+-1,-8,-5,6
+2,2,-5,-1
+5,0,4,5
+-2,-8,0,-6
+-7,-3,-3,-4
+5,-1,6,-3
+-4,4,-3,8
+3,-6,7,-3
+8,4,-2,-7
+1,6,1,-3
+2,4,-7,1
+5,-1,-6,8
+0,0,-2,0
+4,6,1,7
+0,6,0,-2
+8,-6,3,7
+-1,-1,4,-3
+-3,6,-4,-7
+5,-5,-4,-4
+7,-5,7,7
+-5,-6,-8,4
+-1,-5,-3,-3
+7,6,-2,7
+7,-4,-2,-1
+0,-3,-7,-3
+0,-3,4,0
+-6,-2,0,-7
+8,-6,0,-5
+-6,-2,5,4
+-5,-8,-2,-1
+-4,6,-7,3
+-3,2,-5,-5
+-8,2,4,-3
+5,2,0,8
+-8,4,2,1
+-4,8,-7,0
+-1,4,3,5
+1,-7,5,4
+0,-4,0,-6
+-4,-3,-2,5
+3,5,-2,1
+-7,8,-7,7
+3,5,-1,-2
+1,-6,1,6
+-3,3,4,3
+-4,-6,-7,-2
+0,7,2,-8
+-1,-4,3,3
+-6,5,6,4
+0,-8,6,1
+5,6,2,-3
+-1,3,-5,-2
+5,-4,-4,-3
+-6,8,-6,1
+-5,-3,-2,-2
+-2,0,-4,-5
+-8,-1,5,-2
+-5,-3,6,6
+6,-3,0,5
+6,-7,5,4
+6,4,7,5
+0,-7,-6,-1
+2,-5,5,-8
+-3,-1,0,5
+6,7,5,6
+2,6,-2,8
+8,0,7,-6
+6,8,-8,-6
+7,-5,-6,-2
+2,-4,0,-6
+-6,1,-4,-1
+7,8,-4,-4
+-5,7,-1,3
+-1,0,5,-7
+5,2,-3,-4
+-4,-5,-7,-5
+0,-4,-3,0
+-6,6,-8,0
+-8,0,5,-8
+8,-7,-7,7
+2,6,-5,-5
+4,5,2,0
+7,-7,-5,1
+-6,8,-3,-3
+8,-6,4,-8
+8,-3,7,1
+8,-2,7,-6
+-4,-2,-8,-4
+7,-5,8,4
+6,0,0,-3
+6,2,2,-1
+-6,2,-4,1
+-5,6,3,1
+-4,-7,-5,7
+6,-7,7,-4
+-3,7,-6,-3
+8,-1,3,-6
+-3,2,-1,-2
+2,4,0,7
+6,-8,-5,-4
+8,6,6,-2
+0,5,-8,6
+3,6,-6,2
+8,7,5,-4
+0,-6,-6,5
+-1,2,0,-1
+0,3,8,6
+-5,8,6,-2
+2,1,1,1
+5,-7,-6,-3
+-7,1,7,4
+-2,-2,7,0
+3,2,0,-6
+1,-5,-5,-2
+3,2,-2,-5
+8,6,-4,1
+5,-5,3,0
+6,-6,-2,2
+1,8,1,3
+0,3,-5,7
+8,-2,-3,8
+-6,2,0,5
+-3,5,1,-5
+0,6,-6,8
+-5,-7,-3,7
+-6,3,0,-5
+6,-2,-5,-1
+5,-2,-6,0
+-8,-3,7,-1
+-6,-6,-7,-6
+6,-6,6,0
+-3,7,5,-3
+5,6,-7,-3
+-5,-5,6,7
+-5,-8,2,-5
+-8,3,3,6
+-4,8,8,8
+4,0,7,-6
+-8,0,-8,-2
+1,-5,1,-2
+6,7,-6,1
+2,-5,-5,8
+-3,3,3,6
+2,-6,1,2
+0,-4,-3,3
+6,-3,-5,0
+1,-8,5,0
+-2,7,-2,-4
+-5,2,-6,4
+0,7,3,-7
+1,-3,2,1
+-5,-2,-5,5
+3,6,5,0
+7,1,-5,0
+-7,-6,-3,1
+0,5,-4,7
+5,-3,5,-6
+8,7,0,-1
+-7,-6,-2,-1
+4,8,-2,2
+5,8,5,7
+8,-3,-1,-5
+0,6,-4,6
+-4,8,2,-7
+-8,-5,6,-4
+-3,0,4,1
+8,8,5,-1
+2,4,0,0
+-8,6,3,-6
+6,-1,-6,1
+5,2,-7,3
+3,-3,-4,4
+-4,3,7,-8
+-3,-8,-5,0
+-7,0,-1,4
+1,-2,-4,7
+-3,7,-3,0
+6,1,0,-4
+5,8,0,-3
+-4,1,-2,-7
+-5,-8,-6,1
+-5,8,-7,-4
+0,-7,2,7
+-4,-1,0,-2
+-5,-2,-7,2
+6,-4,1,-8
+2,-2,-6,4
+-7,-2,-1,0
+-2,3,-1,0
+4,-7,7,0
+-1,0,8,-2
+-4,-7,-2,-8
+5,8,4,4
+-2,-3,6,5
+-4,-4,-5,-1
+-3,-4,7,-3
+1,3,5,2
+-7,-6,-6,8
+8,-5,-7,-2
+1,2,-6,2
+-4,5,6,8
+-5,8,-3,1
+1,0,3,-2
+7,5,-7,-6
+4,7,-6,7
+-2,3,-2,0
+4,-3,0,-2
+-1,6,0,-7
+-2,-1,-1,0
+-2,-5,-3,0
+7,7,7,4
+-2,-5,2,-8
+0,-8,5,-2
+7,-8,-7,-1
+-3,0,4,2
+-4,4,8,4
+8,5,-4,6
+2,6,-7,0
+-6,-7,1,-4
+7,-5,-8,1
+-1,4,3,-2
+2,1,-2,-1
+0,8,0,-6
+3,1,-8,6
+0,1,-5,5
+-2,-2,-2,1
+-8,2,8,7
+-5,-3,4,4
+2,3,-8,0
+5,-3,6,-6
+-1,-7,6,-1
+8,-2,1,4
+8,7,3,8
+-4,-2,8,7
+-5,5,3,-6
+8,-1,0,-1
+6,4,-3,2
+1,2,4,-8
+-2,-2,-4,-4
+2,-4,-1,1
+-3,-6,3,0
+5,-3,-2,0
+4,-7,1,-1
+-8,3,8,4
+0,-2,5,-1
+-1,-3,-5,-2
+1,5,2,-2
+-7,-6,7,0
+4,-6,-4,4
+4,4,-3,-6
+5,-7,4,1
+4,-7,0,2
+-8,1,-6,-6
+-6,-7,-4,-4
+-6,1,6,1
+-1,5,0,6
+0,-5,0,4
+2,8,-7,0
+-4,2,1,-5
+-4,-7,8,7
+-5,3,-5,2
+-4,-3,0,-6
+0,0,0,4
+5,-6,-2,-8
+0,-1,4,-4
+-6,3,8,8
+8,-8,-8,7
+6,-8,-4,6
+2,0,-2,5
+6,2,4,-6
+-2,-3,4,3
+0,0,0,2
+8,3,-5,0
+-2,8,-3,-3
+-3,-8,6,6
+0,8,-1,6
+-7,1,6,-2
+3,-7,0,4
+3,-2,0,-1
+0,-2,-7,-6
+1,8,6,-2
+-2,5,1,4
+-4,-4,2,8
+-7,1,-8,-4
+1,-4,0,7
+5,-8,-4,0
+-2,4,7,-3
+0,4,-5,-1
+-6,8,-2,1
+-1,8,0,-5
+-1,-6,-8,4
+-3,8,8,-4
+1,4,-5,6
+-4,6,0,2
+-2,8,-3,-5
+-1,-8,7,5
+-4,-6,-5,-3
+7,0,-8,0
+-3,4,-7,3
+5,-8,-7,8
+-4,0,6,0
+-2,-7,-2,7
+4,7,-7,-7
+0,0,3,3
+1,6,0,-2
+-1,1,-3,-3
+-8,-6,-1,6
+7,-8,2,5
+8,-6,5,-7
+5,0,-6,-5
+5,7,-1,5
+8,-4,-5,8
+0,5,-2,1
+-3,0,-4,-3
+5,-1,6,6
+1,0,-7,-8
+3,-5,-3,-4
+1,-2,1,7
+-5,-6,4,-2
+-6,3,0,0
+1,-6,2,-2
+-2,5,1,0
+2,5,-1,-5
+-5,2,-4,4
+-5,-7,8,0
+8,7,0,6
+8,5,0,-5
+5,1,-6,8
+1,-7,-4,1
+-1,8,4,-6
+3,-4,0,2
+-8,6,0,4
+1,-7,5,-2
+-7,4,-4,-7
+-5,7,8,-2
+6,3,0,-5
+5,0,0,2
+5,-8,-6,-4
+0,1,8,6
+-3,5,-4,-5
+-5,5,2,0
+5,-5,8,1
+7,0,-6,0
+-4,-5,3,3
+-5,1,0,-5
+8,1,2,-7
+-8,-6,5,6
+-6,-3,1,7
+-2,8,7,-8
+-3,-1,-1,-5
+-3,-5,-5,-4
+2,-4,-5,1
+-4,3,-2,-5
+-6,8,-6,8
+-4,2,0,3
+4,0,-3,0
+-3,-6,-6,1
+7,0,5,0
+0,5,0,2
+-2,-7,-8,8
+-6,1,6,-6
+6,-1,-8,-8
+-2,0,0,7
+4,-2,-4,-4
+-6,4,4,-7
+3,-3,0,4
+-2,-7,3,-5
+-2,-6,-8,7
+7,3,-3,0
+-5,-1,4,-5
+1,-3,-4,5
+-7,7,0,-1
+0,0,-3,4
+-8,8,-5,-2
+5,4,-5,3
+7,0,-5,0
+2,0,-4,-6
+0,8,-1,5
+6,6,0,-3
+-2,8,-8,6
+-3,0,7,7
+6,-5,-1,1
+5,-6,-5,3
+0,3,6,-6
+0,7,-3,-4
+0,-7,-2,-4
+-4,2,0,-7
+-8,-7,-7,-1
+5,8,-2,6
+-5,7,-6,8
+6,0,6,1
+6,6,3,6
+1,3,6,-3
+5,-8,6,-4
+6,-4,-6,-8
+1,0,-5,0
+-6,3,0,-6
+5,4,5,7
+-6,-6,-8,7
+1,0,-2,-1
+5,-6,5,7
+-7,8,7,-7
+-1,2,0,2
+0,-2,-8,8
+-8,8,0,5
+7,-2,3,3
+0,6,8,2
+-3,-1,-7,3
+5,1,-8,4
+3,-3,4,0
+6,3,2,3
+-6,-8,5,-7
+7,0,-7,0
+-4,0,-7,-3
+0,8,3,-8
+-4,0,0,-5
+-6,-8,-3,0
+-5,1,4,6
+-3,0,-2,8
+1,1,-7,-5
+-4,5,4,-7
diff --git a/day25.rb b/day25.rb
new file mode 100644
index 0000000..5b51602
--- /dev/null
+++ b/day25.rb
@@ -0,0 +1,34 @@
+d = File.readlines("day25").map { |x| x.split(",").map(&:to_i) }
+
+class DSU
+
+  def initialize(x)
+    @array = Array.new(x) {|i| i }
+  end
+
+  def find(x)
+    return x if @array[x] == x
+    @array[x] = find(@array[x])
+  end
+
+  def union(a, b)
+    @array[find(a)] = @array[find(b)]
+  end
+
+  def sets
+    @array.collect{ |i| find(i) }.uniq.length
+  end
+  
+end
+
+dsu = DSU.new(d.size)
+
+(0...d.size).each { |i|
+  (i+1...d.size).each { |j|
+    if d[i].zip(d[j]).map { |(a,b)| (a-b).abs }.sum <= 3
+      dsu.union(i, j)
+    end
+  }
+}
+
+p dsu.sets