It's going to be 2 3rd, and these are the only possibilities, and these add up to one right over here. So don't switch 1 3rd chance of winning. Now let's think about the switching situation. So let's say always, when you always switch, let's think about how this might play out. What is your probability of winning? And before we even think about that, think about how you would win if you always switch. So if you pick wrong the first time, they're going to show you this, and so you should always switch.