1
5 0 0 0 0 0 0 0 0
2
0 9 0 7 0 0 8 0 0
3
0 0 0 0 3 0 0 7 0
4
6 0 1 0 0 0 9 8 0
5
0 0 0 6 0 0 0 0 0
6
0 0 9 0 0 0 7 0 1
7
0 0 0 0 0 8 1 9 0
8
0 4 0 5 0 1 0 0 8
9
0 7 0 3 0 6 0 4 0
10