Well, let me try to do that. I'll draw it big so that we can really see how obvious that we have to take on all of the values between F of A and F of B is. So let me draw a big axis this time. So that's my Y axis, and that is my X axis. And I'll just do the case where, just for simplicity, that is A and that is B. And let's say that this is F of A. So that is F of A.