6 7 1 2 E 1 2 S 1 4 S 1 6 S 3 2 N 3 2 E 3 3 S 3 5 S 5 3 N 5 4 W 5 4 S 5 5 W 2 4 E end of barriers 2 3 S W E N E E S S end of instructions