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