 Huh. Yeah. You've got to give me a little more on that just because it's interesting. Sure. So if you take a number, a positive number, and if it's even, you divide it by two, okay? Okay. And if it's odd, you multiply it by three and add one. That's the game. This is a game? Yeah, it's a game. So if you take a number, if it's even, you divide it by two.