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