Someone else. And at first this problem seems really hard because, wow, there's a lot of circumstances that make this true. I could have exactly two people have the same birthday. I could have exactly three people have the same birthday. I could have exactly 29 people have the same birthday. All of these make this true. So do I add the probability of each of those circumstances and then add them up and then that becomes really hard and then I would have to say, OK, whose birthdays am I comparing and I would have to do combinations.