leak 1 1 N
leak 1 1 W
leak 1 2 E
leak 2 1 S
leak 2 1 W
leak 2 2 E
leak 3 1 E
leak 3 1 S
leak 3 2 E
leak 3 2 S
leak 4 1 E
leak 4 1 S
leak 4 1 W
leak 5 1 E
leak 5 1 W
leak 5 2 S