input: def cube_of_integer(number: int) -> None:
      """
      Takes an integer input from the user and prints its cube.
  
      >>> cube_of_integer(3)
      The cube of the number is: 27
      >>> cube_of_integer(-2)
      The cube of the number is: -8
      """
      cube = number ** 3
      print("The cube of the number is: " + str(cube))
output:     cube = number ** 3
      print("The cube of the number is: " + str(cube))