And now let's put them into four chairs. We can go through this fairly quickly. One, two, three, four chairs. And we've seen this show multiple times. How many ways, how many permutations are there of putting these six people into four chairs? Well, the first chair, if we seat them in order, we might as well, we could say, well, there'd be six possibilities here. Now for each of those six possibilities, there'd be five possibilities of who we put here, because one person's already sitting down.