: s/$/Z/ h y/0123456789/9012345678/ x G s/[1-9]0*Z*\n.*\([0-8]9*\)/\1/ s/^0*// /^Z/!b p h y/Z/ / s/ $/Z/ :1 s/ / /p t1 g /^Z$/d
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
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