4
1
14
1 1 1 0 0 0 0 0 0 0 0 0 0 0    0
1 0 0 0 0 0 1 0 0 1 0 0 0 0    1
0 0 0 0 1 1 1 0 0 0 0 0 0 0    2
0 0 0 1 0 0 0 1 0 1 0 0 0 0    3