S Q U A R E

from graphics import*;
import random;

window = GraphWin("589 doe",500,500)
window.setBackground("white")

for x in range(0,588,3):
    x = random.randint(0,500)
    y = random.randint(0,500)
    x2 = random.randint(0,500)
    y2 = random.randint(0,500)
    x3 = random.randint(0,500)
    y3 = random.randint(0,500)
    r1 = Rectangle(Point(x,y),Point(x+25,y+25))
    r1.setFill("white")
    r1.draw(window)
    r2 = Rectangle(Point(x2,y2),Point(x2+25,y2+25))
    r2.setFill("grey")
    r2.draw(window)
    r3 = Rectangle(Point(x3,y3),Point(x3+25,y3+25))
    r3.setFill("black")
    r3.draw(window)