4 3 1 8 9 5 7 2 6 
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0 0 5 0 0 0 0 8 0 
0 9 0 0 2 0 0 7 5 
2 7 4 5 8 6 9 0 0 
0 5 0 9 3 7 6 4 0 
3 8 0 4 0 0 0 1 0 
0 0 2 0 7 8 4 0 9 
7 0 0 0 1 2 0 0 0