同心圓

rmin=eval(input())

number=eval(input())

color=input()

import turtle as t

t.pencolor(color)

t.pensize(4)

for i in range (number):

t.circle(rmin)

rmin=rmin+20

t.penup()

t.seth(-90)

t.fd(20)

t.seth(0)

t.pendown()

t.hideturtle()

t.done()