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

