input: 
  def calculate_average() -> float:
      """ Calculate the average of five numbers entered by the user.
      >>> calculate_average()
      The average is 3.0
      """
      nums = []
      for i in range(5):
          nums.append(int(input("Please enter number: ")))
  
      # Calculate average
      average = sum(nums) / len(nums)
  
      # Print average
      print("The average is ", average)
  
output:     return average