#CODE = #B058
import turtle as t
import colorsys as c
t.setup(1000,500)
t.width(6)
t.tracer(20)
t.bgcolor("black")
q=0
for i in range(260):
    color=c.hsv_to_rgb(q,1,1)
    q+=0.09
    t.fillcolor(color)
    t.begin_fill()
    t.fd(i)
    t.rt(120)
    t.fd(i)
    t.rt(90)
    t.fd(i)
    t.circle(i,50.1)
    t.fd(i)
    t.end_fill()

t.done()