VF 时间限制:1000 ms | 内存限制:65535 KB 难度:2 描述 Vasya is the beginning mathematician. He decided to make an important contribution to the science and to become famous all over the world. But how can he do
描述 Vasya is the beginning mathematician. He decided to make an important contribution to the science and to become famous all over the world. But how can he do that if the most interesting facts such