Well, for each of those scenarios, we only have one person who hasn't sat down left, so there's one possibility. And so the number of permutations, the number of, let me write this down, the number of permutations, permutations of seating these five people in five chairs is five factorial. Five factorial, which is equal to five times four times three times two times one, which of course is equal to, let's see, 20 times six, which is equal to 120. And we've already covered this in a previous video. But now let's do something maybe more interesting, or maybe you might find it less interesting. Let's say that we still have, let's still say we have these five people, but we don't have as many chairs, so not everyone is going to be able to sit down. So let's say that we only have three chairs.