from turtle import *
speed(0)
n= 1400 # aantal stappen
p = [0,1,0]  # = f(0)
for i in range(n):  
    if p[i+1] == 0:
        p.append(0)
        p.append(1)
        p.append(0)  # voegt f(0) toe
    else:
        p.append(1)
        p.append(1)  # voegt f(1) toe
for i in range(n):
    if p[i] == 0:
        left(168)  # hoek h0
    else:
        right(45)  # hoek h1
    forward(120)   # stapgrootte 
done()