import turtle

t = turtle.Turtle()
s = turtle.Screen()
s.bgcolor('black')
t.pencolor('blue')
t.speed(0)
c=0
while True:
  for i in range(4):
      t.forward(100)
      t.right(90)
  t.right(5)
  c +=1
  if c>= 360/5:
      break
t.hideturtle()
turtle.done()