import turtle
import random

bob = turtle.Turtle()
colours = ["cyan", "yellow", "white", "blue", "green", "red", "magenta", "chocolate", "indigo", "lime"]

turtle.Screen().bgcolor("black")
c = 0

for i in range(11):
    for i in range(2):
        bob.forward(100)
        bob.right(60)
        bob.forward(100)
        bob.right(120)
    
    bob.right(36)
    bob.color(colours[c])
    c = c+1
    if c == len(colours):
        c = 0