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OK，听老大的，总统都是为民着想的

Posted by seol at 2004-12-17 19:19:29 on Problem 2128
In Reply To:这是题目条件，不用想那么多。 Posted by:hawk at 2004-12-17 15:46:44 
> 可能仅仅是从方便用户来说。
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