All of that stuff up there, all the way down to 1. 5 minus 3 is 2 over 2 factorial, 2 times 1. 2 cancels with 2, 1 cancels with 1. You don't have to worry about that. You're just left with 5 times 4 times 3. Exactly what we had up here, 5 times 4 times 3. In general, if you wanted to figure out the number of ways to stick 2 things in 5 chairs and you don't care about differentiating between those 2 things, you're going to have this expression right over here, which is the same thing as this right over here.