1 0 1 0
1 0 1 1
1 1 1 0
1 0 0 1
1 1 0 1
1 1 0 1
0 0 1 1
0 1 1 0
0 0 1 0
0 1 0 0
-
1 1 1 0
1 0 1 1
-
1 1
0 1
6 0
8 0
STOP
8 3