S_PIZZA = 15 print("Welcome to Python Pizza Deliveries!") size = input("What size pizza do you want? S, M, or L ") add_pepperoni = input("Do you want pepperoni? Y or N ") extra_cheese = input("Do you want extra cheese? Y or N ") if size == 'S': if add_pepperoni == 'Y': S_PIZZA += 2 if extra_cheese == 'Y': S_PIZZA += 1 elif size == 'M': S_PIZZA +=5 if add_pepperoni == 'Y': S_PIZZA += 3 if extra_c..