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

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