from random import *
from turtle import *
t=pen()
title("Перетин кіл")  
reset() 
setup(250,250)
pensize(1)      
bgcolor(0,0.8,0.63)     
for j in range(4):
   color(uniform(0,1), uniform(0,1),uniform(0,1))
   for i in range(10):
      circle(i*5)
   right(90)
exitonclick()