And my maximum y value, let's see what would be reasonable here. I'm just going to pick a random x and see what type of a volume I get. If x were to be 5, it would be 5 times 20 minus 10, which is 10. So that would be, did I do that right? Yeah, 20 minus 2 times 5, so that would be 10. And then times 30 minus 2 times 5, which would be 20. So it would be 5 times 10 times 20.