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