Pipe Corner 2

a=east,b=down a=east,b=east a=east,b=north a=east,b=south a=east,b=up a=east,b=west a=north,b=down a=north,b=east a=north,b=north a=north,b=south a=north,b=up a=north,b=west a=south,b=down a=south,b=east a=south,b=north a=south,b=south a=south,b=up a=south,b=west a=west,b=down a=west,b=east a=west,b=north a=west,b=south a=west,b=up a=west,b=west