import turtle
C = turtle.Pen()
C.fillcolor('blue')
C.begin_fill()
C.circle(50)
C.end_fill()
C.fillcolor('yellow')
C.begin_fill()
C.circle(30)
C.end_fill()
C.fillcolor('pink')
C.begin_fill()
C.circle(20)
C.end_fill()
turtle.hideturtle()





