1

from turtle import*

color('yellow','yellow')

setup(0.5,0.5,0,0)

bgcolor("black")

begin_fill()

while True:

    forward(200)

    left(90)

    if abs(pos())<1:

        break

pensize(5)

color('red','yellow')

pendown()

forward(200)

left(90)

penup()

forward(200)

left(90)

pendown()

forward(200)

end_fill()

done()