__ __ ____
/\ \ /'__`\ /\ _`\
___ __ __\ \ \____/\_\L\ \\ \ \/\ \
/'___\/\ \/\ \\ \ '__`\/_/_\_<_\ \ \ \ \
/\ \__/\ \ \_\ \\ \ \L\ \/\ \L\ \\ \ \_\ \
\ \____\\ \____/ \ \_,__/\ \____/ \ \____/
\/____/ \/___/ \/___/ \/___/ \/___/
-0 None -1 wall -N, S, E, W starting position