7
10
1 0 1 1 0 0 1 1 1 0
1 1 0 0 2 0 1 0 2 1
0 0 0 0 1 1 1 1 0 1
1 1 2 1 0 0 2 0 1 0
0 2 0 1 1 1 0 1 1 1
1 1 1 0 0 0 2 0 1 0
1 0 0 0 1 0 1 0 1 0
