from turtle import *

import math

from random import *

a = Turtle()

a.speed(0)

koko = 100

a.penup()

a.goto(0,-koko)

a.pendown()

a.circle(koko)



miinus = [-1,1]



maara = 0



for i in range(1000):

  x1 = randrange(-koko,koko)

  y1 = choice(miinus)*math.sqrt(koko*koko-x1*x1)

  x2 = randrange(-koko,koko)

  y2 = choice(miinus)*math.sqrt(koko*koko-x2*x2)

  

  if math.sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2)) > math.sqrt(3)*koko:

    a.pencolor('blue')

    maara += 1

  else:

    a.pencolor('red')

  

  a.penup()

  a.goto(x1,y1)

  a.pendown()

  a.goto(x2,y2)



print maara