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