clear()
setSpeed(fast)
right(90)
forward(200)
right(90)
forward(20)
right(90)
forward(150)
left(90)
forward(20)
left()
forward(150)
right(90)
forward(20)
right(90)
forward(200)
left()
forward(20)
left()
forward(200)
right(90)
forward(20)
right(90)
forward(150)
left()
forward(20)
left()
forward(150)
right(90)
forward(20)
right(90)
forward(150)
left()
forward(20)