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d:.:''"/"\'0:`day24

s:,/(,/{v::x[0];r::x[1];{(x@v=*x;r,,x)}'in[*x;]#d^x[1]}')\,(0;,!0)
|/{+/,/x[1]}'s
l: |/#:'s[;1]
|/{+/,/x[1]}'{l=#x[1]}#s
\\