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