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