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in reply to Re3: A real challenge
in thread A real challenge

I know - it's just so that the key can be any length without having to do the length X/length y + 1 thing all on one line :) I have to substr it anyway so what's a few bytes between system calls! I wouldn't have been so frivolous if I was getting the key from STDIN though!

"Argument is futile - you will be ignorralated!"