#!/usr/bin/perl -l print while s//~$`?($n=$`%10+$&)-9*($n>9):pop/ge,/./ |
#!/usr/bin/perl -l print,while+s//~$`?($n=$`%10+$&)-9*($n>9):pop/ge,/./ |
#!/usr/bin/perl -l print,while+s//~$`?($$=$`%10+$&)-9*($$>9):pop/ge,/./ |
#!/usr/bin/perl -l print,while+s#.?#$`>9?$`%100%9||$`%100&&9:pop#eg,/./ |
#!/usr/bin/perl -l print while s//$'.0?($n=($'&v63)+$&)-9*($n>9):pop/ge,/./ |
#!/usr/bin/perl -l print while s/.|^/$'.0?($n=($'&v63)+$&)-9*($n>9):pop/ge,/./ |
#!/usr/bin/perl -l print while s/.|^/'.'lt$'?($n=($'&v63).$&)%9||0+$n&&9:pop/ge,/./ |
#!/usr/bin/perl -l print while s/.|^/'.'lt$'?($n=($'&v63).$&)%9||0+$n&&9:pop/ge&&/./ |
#!/usr/bin/perl -l print@_ while@_=(pop=~/./g,map-9*(($n=$_[1]+shift@_)>9)+$n,1..$#_) |
#!/usr/bin/perl -l print while s/.|^/length$'?($n=($'&v63).$&)%9||0+$n&&9:pop/ge&&/./ |