10
-1 -1 -1 1  1 1 1 2  2 2 1 1  -1 -1 -1 -1
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 3 3 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 3 3 3 3 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 3 3 3 3 3 3 0 0 0 0 0 0 0
0 0 0 0 0 0 3 3 3 3 3 3 3 3 0 0 0 0 0 0
0 0 0 0 0 3 3 3 3 3 3 3 3 3 3 0 0 0 0 0
0 0 0 0 0 3 3 3 3 3 3 3 3 3 3 0 0 0 0 0
0 0 0 0 0 0 3 3 3 3 3 3 3 3 0 0 0 0 0 0
0 0 0 0 0 0 0 3 3 3 3 3 3 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 3 3 3 3 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 3 3 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0