text: 
  # Let's get input from the user instead of hardcoding numbers into the
  # function call, and add some comments explaining what we're doing.
  
  # Define two functions; one to perform additon, and another, subtraction
  def add(x, y):
      return x + y
  
  
  def subtract(x, y):
      return x - y
  
  
  # Single-line comments, like this one, start with a `#` (hashmark/'pound' sign)
  # Multi-line ones are wrapped in three """ (double-quote marks) or three
  # `'` (straight apostrophes), like so:
  
  '''
  Get two inputs from the user and cast them to integers.
  This is because the built-in input() method returns a string by default.
  
  You could also do the casting within the functions themselves,
  but doing it just once, at the time of capture, is probably more efficient.
  '''
  
  first = int(input("Enter a number: "))
  second = int(input("Enter another number: "))
  
  # Print the results of the two calculations
  result = add(first, second)
  print(f"The sum of {first} and {second} is {result}.")
  
  result = subtract(first, second)
  print(f"{first} minus {second} is {result}.")
  