Wow. I was just on the verge of giving up (after making an H, a 17, a 71, the world's most boring game of Pong), when it suddenly hit me. That's evil. And clever.
how do you do it
In rot13: Lbh boivbhfyl qba'g unir rabhtu oebja fdhnerf gb znxr n pvepyr yvxr lbh qvq va gur svefg ebhaq.
Be ng yrnfg, abg n *oebja* pvepyr...