+/1={|/+/w~/:\:w:" "\x}'0:`day04          / 383
+/1={|/+/x~/:\:x}'" "\'0:`day04           / 383
+/{~+/~':x@<x}'" "\'0:`day04              / 383 thanks inr
+/1={|/+/w~/:\:w:{x@<x}'" "\x}'0:`day04   / 265
+/{~+/~':x@<x:{x@<x}'x}'" "\'0:`day04     / 265 thanks inr
\\