 And I don't know if he came up with the 20% or whatever, and I just walked him through it. He put the 20% down, and I add that up. I swear to God, there was a box drawn. There was a number at the top, bottom, and sides. You add that number to that number, then subtract that number from the sides. And then you write on another piece of, I said, what the, they teaching these kids. Back in the day, you look at the number, you carry the two, put that right down. You done that in a couple seconds.