'''
Created on Apr 4, 2011

@author: ola
'''
import turtle

def draw(iters):
    flake = "FRFRF"
    for steps in range(iters):
        flake = flake.replace("F", "FLFRFLF")
    
    for move in flake:
        if move == "F":
            turtle.forward(100.0/3**(iters-1))
        elif move == "L":
            turtle.left(60)
        elif move == "R":
            turtle.right(120)
            
draw(2)
x = raw_input()