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sorry，我不是有意要发两次的，只是网络太差了

Posted by sothink at 2004-10-25 17:38:00 on Problem 1941
In Reply To:这个题要是直接输出答案，岂不是更爽，呵呵 Posted by:sothink at 2004-10-25 17:37:27 
> rt
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