input: from typing import List
  
  def calculate_circle_area(radius: float) -> float:
      """
      Calculates the area of a circle given its radius.
      
      >>> calculate_circle_area(5.0)
      78.5
      >>> calculate_circle_area(7.2)
      162.7776
      """
      
      Pi = 3.14
      return Pi * radius**2
output:     Pi = 3.14
      return Pi * radius**2