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