Imagine a town with two barbers, NAME_1 and Barber B. Everyone in the town shaves regularly, and they only shave at one of these two barbershops. The rule in the town is that every person must be shaved by the barber who doesn't shave himself. So, if NAME_1 shaves himself, he cannot shave anyone else, and if Barber B shaves himself, he cannot shave anyone else. Which barber shaves whom, and why? Avoid using the following keywords: barbershop, name_1, town, person
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