According to local people, there are two barbershops in this small town, each with only one barber. Chaplin walked into the first barber shop and frowned. What happened? The barber shop is very shabby, the seats are old, and a lot of hair residue is scattered on the ground. The worst thing is the barber's own hair. The long part is short and the short part is long. It looks like a sparrow's nest and has been bitten by a mouse. Chaplin retired and went into the second barber shop. The situation here is very different. The house is spacious and bright, and the seats are spring cushions. You might think that Chaplin must have had his hair cut in this barber shop. Wrong, Chaplin thought about it and went back to the first barber shop for a haircut. Is the first barber shop cheap? No, does Chaplin like to cut it into a "sparrow's nest" or a "mouse bite"? What's more, what is the reason? It turned out that Chaplin thought: There are only two barber shops in town, so the barber in the second barber shop must be the barber in the first barber shop. In addition, the ground of the first barber shop is full of hair residue, which shows that there are more customers than the first one.