from turtle import *
from math import *

def log10(x):
    return log(x)/log(10)
def trait(p):
    left(90)
    forward(p)
    backward(p)
    right(90)

clear()
for n in range(1,101):
    forward(400*(log10(n/10+0.1)-log10(n/10)))
    trait(2)
goto(0,0)