And then you are going to be left with six. You could think of it in terms of this. Or you could just apply the formula. You could just say, hey look, four choose two, or the number of combinations of selecting two from a group of four. This is going to be four factorial over two factorial times four minus two. Four minus two factorial. And I'm going to make this color different just so you can keep track of how I'm at least applying this.