It's morning, and the professor wants to know how much time he can spend with his student. He wants to see him every three days, which is too much for him. He's also worried that the professor will fire all of his professors, so he's going to have to refuse. The professor says he'll have to come back the next week, but he doesn't know why. He says he can't come back until next week because of his busy schedule, but the professor won't be able to refuse until the following week. So they have to figure out how often they can see each other, and then they can figure out the problem of how often the professor can see the student. They have a bet: if the professor drops the bet, the bet will be decided. If the bet is on the side of the professor, then the professor wins. But if it's on the other side, the professor loses.