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
