So you could take that and you could divide by two times one. And if you did that, then this two times one would cancel with that two times one and you'd be left with five times four times three. And the whole reason I'm writing this way is that now I could write it in terms of factorial. I could write this as five factorial over two factorial. But then you might have the question, well, where did this two come from? You know, I have three seats. Where did this two come from?