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有甲乙丙3个人,一直是蓬头垢面,衣鞋龌龊。一天,有个朋友给了甲两块钱。甲拿出一块钱给乙,让他为自己理发洗头;另外的一块钱他付给了丙,丙把他的衣衫和鞋子洗得干干净净。此时的甲已是焕然一新了,但却身无分文,而乙丙是各得一块钱。已经有一块钱的乙,向丙付了一块钱,让丙洗了他的衣服和鞋。有了两块钱的丙,也取出一块钱让乙给自己收拾一下头发,并再付一块钱给甲,让甲替他洗衣衫和鞋。这样,丙的钱虽然来了又去,可浑身上下变得干干净净。这时有钱的是甲和乙,每人拥有一块钱;打理干净的增加到了甲和丙两个人。
A 3 B 3 individuals, has always been unkempt, clothing shoes 龌 龊. One day, a friend gave me two yuan. A pulls out a dollar for B and makes him shampoo his hair for himself; the other dollar he paid for C, C dries his clothes and shoes clean. At this point a is a brand new, but penniless, and B is worth a dollar. Had a dollar B, paid a dollar to C, let C wash his clothes and shoes. With two dollars of C, also took out a piece of money for B to clean up their hair, and then pay a dollar to A, let A wash clothes for his shirt and shoes. In this way, although C’s money came and went, it would be able to get it all up and down clean. At this time, money is A and B, each has a dollar; clean and increase to A and C two people.