2215: ABCD*4=DCBA

Memory Limit:128 MB Time Limit:1.000 S
Judge Style:Normal Judger Creator:
Submit:20 Solved:0

Description

编程求一个四位自然数ABCD,它乘以4后变成DCBA(A,B,C,D各不相同)。

Sample Output Copy

2178

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