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