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

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