clear()
setPenColor(purple)
forward(50)
right(90)
forward(50)
left(90)
forward(50)
left(90)
forward(50)
right(90)
forward(50)
left(90)
forward(50)
left(90)
forward(50)
right(90)
forward(50)
left(90)
forward(50)
left(90)
forward(50)
right(90)
forward(50)
left(90)
forward(50)