Well, if that first head takes up one of these 4 places, let's just say that first head shows up on the third flip, then how many different places can that second head show up in? Well, if that first head is in one of the 4 places, then that second head can only be in 3 different places. So that second head can only be in 3 different places. And so it could be in any one of these. It could maybe be right over there, any one of those 3 places. And so when you think about it in terms of the first, and I don't want to say the first head, head 1. Actually, let me call it this way.