input: from typing import List
  
  
  def calculate_circle_area():
      """
      Prompts the user to enter the radius of a circle and calculates the area of the circle.
      
      >>> calculate_circle_area()
      Please enter the radius of the circle: 5
      The area of the circle is: 78.5
      """
output:     radius = float(input("Please enter the radius of the circle: "))
      area = 3.14159 * radius * radius
      print(f"The area of the circle is: {area}")