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 199
ES 199
EAST 200
ES 400
WEST 200
NW 199
SOUTH 199

WEST 200
SE 200
SOUTH 200
WN 400
NORTH 200
WN 200
EAST 200