#!/usr/bin/env python3

import turtle

def koch(size, n):
	if n == 0:
		turtle.fd(size)
	else:
		for angle in [0, 60, -120, 60]:
			turtle.left(angle)
			koch(size/3, n -1)

def main():
	turtle.setup()
	turtle.penup()
	turtle.goto(-200,100)
	turtle.pendown()
	turtle.pensize(2)
	level = 3
	koch(400, level)
	turtle.right(120)
	koch(400, level)
	turtle.right(120)
	koch(400, level)
	turtle.hideturtle()
	turtle.done()


main()
