Problem 0: 解数字灯谜 Problem 0: 解数字灯谜
Time Limit: 10000 Sec Memory Limit: 128 MB
Submit: 144 Solved: 119
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有以下算式：ABCD - CDC =ABC，其中A B C D均为一位的非负整数，求ABCD的值
Output
1098
Sample Output
1098
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