TO ES :n
   IF :n = 0 [ STOP ]
   EAST 1
   SOUTH 1
   ES :n - 1
END
TO SE :n
   IF :n = 0 [ STOP ]
   SOUTH 1
   EAST 1
   SE :n - 1
END
TO NW :n
   IF :n = 0 [ STOP ]
   NORTH 1
   WEST 1
   NW :n - 1
END
TO WN :n
   IF :n = 0 [ STOP ]
   WEST 1
   NORTH 1
   WN :n - 1
END

NORTH 11
ES 11
EAST 12
ES 24
WEST 12
NW 11
SOUTH 11

WEST 12
SE 12
SOUTH 12
WN 24
NORTH 12
WN 12
EAST 12