REPEAT 4
[FORWARD 80
RIGHT 90]
RIGHT 90
FORWARD 20
LEFT 90
FORWARD 80
RIGHT 90
FORWARD 20
RIGHT 90
FORWARD 80
LEFT 90
FORWARD 20
LEFT 90
FORWARD 80
RIGHT 90
FORWARD 20
RIGHT 90
FORWARD 80
RIGHT 180
FORWARD 20
LEFT 90
FORWARD 80
RIGHT 90
FORWARD 20
RIGHT 90
FORWARD 80
LEFT 90
FORWARD 20
LEFT 90
FORWARD 80