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

