说明：  浙大 编程能力测试 的甲级题目 第 1015. Reversible Primes (20) 数字特征问题 关于给定进制数 判断一个数据是否符合给定特征
(A reversible prime in any number system is a prime whose reverse in that number system is also a prime. For example in the decimal system 73 is a reversible prime because its reverse 37 is also a prime. Now given any two positive integers N (< 105) and D (1 < D <= 10), you are supposed to tell if N is a reversible prime with radix D.)