So let's say that's all of the outcomes in my probability space. So that's 100% of the outcomes. And we want to know, let me draw it in a color that won't be offensive to you. That doesn't look that great, but anyway. Let's say that this is the probability, this area right here, I don't know how big it really is, we'll figure it out, let's say that this is the probability that someone shares a birthday with at least someone else. What's this area over here? What's this green area?