input: Write a function to prompt the user for the radius of a circle and then calculate and print the area of the circle. The function should use the constant value of Pi as 3.14.
  assert calculate_circle_area(5) == print("The area of the circle is: 78.5")
  assert calculate_circle_area(0) == print("The area of the circle is: 0.0")
  assert calculate_circle_area(-1) == print("The area of the circle is: 3.14")
output: def calculate_circle_area(radius):
      area = 3.14 * radius * radius
      print(f"The area of the circle is: {area}")