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给几组数据

Posted by night146 at 2010-12-09 02:32:07 on Problem 1679 and last updated at 2010-12-09 02:32:34 
3
3 3
1 2 2
2 3 3
3 1 3
3 3
1 2 3
2 3 2
3 1 3
3 2
1 2 2
2 3 2
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