from turtle import*
from math import*

goto(-500,0)
forward(1000)
up()
goto(0,500)
down()
right(90)
forward(1000)
left(90)


def point(x,y,pas):
	up()
	goto(x,y)
	down()
	forward(pas)
	
#paramètres ajustables:
echelle_x=5
echelle_y=20
pas=0.2
x=-20
while x<20:
	#fonction à tracer :
	y=sin(x)
	x=x+pas
	
	#affichage du point :
	point(x*echelle_x,y*echelle_y,1)
	
n=input()