input: Write a function that prompts the user to enter the value of radius to calculate the area of a circle. Use the value of Pi as 3.14. The function should then print the calculated area. The function header should be `calculate_circle_area()`.
  assert calculate_circle_area()==""
  assert calculate_circle_area()==""
  assert calculate_circle_area()==""
  assert calculate_circle_area()==""
  assert calculate_circle_area()==""
output: def calculate_circle_area():
      radius = float(input("Enter the value of radius: "))
      area = 3.14 * radius * radius
      print(area)