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