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