+/{h<(+/x)-h:|/x}'"i"$'(" "\'0:"day03")^\:,""
+/{h<(+/x)-h:|/x}',/+:'0N 3 #"i"$'(" "\'0:"day03")^\:,""

/ thanks to John Earnest
+/{h<(+/x)-h:|/x}'.:'0:"day03"
+/{h<(+/x)-h:|/x}',/+:'0N 3 #.:'0:"day03"