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