4 8 2 6 2 1 1 1 1 1 1 1 1 1 2 3 1 1 1 3 1 1 2 1 1 3 1 1 1 1 1 1 1 1 1 1 2 N 2 2 W 2 2 W 2 3 E 2 1 S 4 1 S 7 1