Think of a certain 6-letter word. Move its first letter to the end to get another 6-letter word, then move its first letter to the end to get yet another 6-letter word. Three 6-letter words in all -- what are they? Will says he's aware of two different answers.
I've already found one solution, but I'm working on trying to find the other (or others). I'm using this opportunity to learn how to write modules in Perl.