-l print while+s/./hex($`%10+$&)%15/eg^s//pop/e
Gods. That's a crazy solution. :-)
I really liked the recursive-call-yourself solutions. Unfortunately, the one I tried was affected by the PGAS bug. *shrugs* It'd be really nice if someone took it upon themselves to explain the various algorithms used. Just on a quick glance, I saw some 10-15 different approaches...
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