But here, if I want to just figure out the probability that everyone has a distinct birthday, it's actually a much easier probability to solve for. So what's the probability that everyone has a distinct birthday? So let's think about it. Person 1, just for simplicity, let's imagine the case that we only have two people in the room. What's the probability that they have different birthdays? So if I have two, let's see, person 1, their birthday could be 365 days out of 365 days in the year, right? Whatever their birthday is.