input: Write a function to calculate the cube of an integer input from the user and print it. The function should take no arguments and use `input()` to get the integer from the user.
  assert cube_calculator()
  
  Output:
  "The cube of the number is: 27"
output: def cube_calculator():
      num = int(input())
      print(f"The cube of the number is: {num**3}")