# Write your code here :-)
from turtle import *

t = Turtle()
t.circle(10)
t.penup()
t.setpos(0,-10)
t.pendown()
t.circle(20)
t.penup()
t.setpos(0,-20)
t.pendown()
t.circle(30)
t.penup()
t.setpos(0,-30)
t.pendown()
