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贡献一组数据

Posted by 18357 at 2014-10-29 09:36:10 on Problem 3740 
6 4
1 1 1 0 
0 1 0 1 
0 0 0 0 
0 0 0 0 
1 0 0 0 
1 1 1 0 


It is impossible
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