text: 
  # Import our module and rename it (within this script)
  import calculator as calc
  
  # Print program title and author name
  print(f"\nCalculator, By {calc.author}.")
  print(calc.__doc__)
  print("*" * 10)
  
  # Everything from here down is identical to previous exercises in the
  # `functions` folder, except the names of the function calls themselves
  
  # Get two inputs from the user and cast them to integers
  first = int(input("Enter a number: "))
  second = int(input("Enter another number: "))
  
  result = calc.calculate(first, second)
  print(f"The sum of {first} and {second} is {result}.")
  
  result = calc.calculate(first, second, subtract=True)
  print(f"{first} minus {second} is {result}.")
  
  result = calc.calculate(first, subtract=True)
  print(f"{first} minus the default value is {result}.")
  