Difference of by lvogel

/../!q
p
s/./&,&/g
:b
s/,\(.\)0/,0\1/g
s/[^0,]/&=9876543210:/g
s/\(,0.\)[^,:]*:/\1/g
s/\(.\)=[^:]*\1\(.\)[^:]*:/\2/g
/,[^0]/bb
s/./\
/
s/,0//g
D

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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