from ti_graphics import *
from math import *

def hline(x, y1, y2, Color):
  setColor(Color)
  drawLine(x, y1, x, y2)


B=(0,)*3
W=(255,)*3
G=(0,255,0)
DG=(0,128,0)

f = lambda x: -(sqrt(cos(x))*cos((320-84)*x)+sqrt(fabs(x))-0.7)*(4-x**2)**0.01*1.3*320/8
y4, y2 = f(pi/4), f(pi/2)
l=[]
for i in range(320):
    x=((i-160)/320)*5
    l.append(ceil((cos(x)<0 and y2 or f(x))+y4-y2+30))

imax = int(input("N="))*320

cls()
setColor(B)
fillRect(0,30,320,210)

i = 0
while imax > 0:
    hline(i%320,l[i],l[i-1],W)
    hline((i-5)%320,l[i-5],l[i-6],G)
    hline((i-291)%320,l[i-291],l[i-292],DG)
    hline((i-296)%320,l[i-296],l[i-297],B)
    i = (i + 1) % 320
    imax -= 1