# show draw a circle
# use an input prompt
# fill a shape in

import turtle

wn = turtle.Screen()
wn.bgcolor("skyblue") # background colour in sky blue

dot_size = int(input("How big a radius do you want dot? >> "))

dot = turtle.Turtle()
dot.shape("turtle")
dot.color("red")

dot.begin_fill()
dot.circle(dot_size)
dot.end_fill()

wn.exitonclick()