POSSIBLE
000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
011111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111110
000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000