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