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