Question: A customer at a fast-food restaurant can order a hamburger with or without mustard, ketchup, pickle, or onion; a fish sandwich with or without lettuce, tomato, or tartar sauce; and a choice of 3 kinds of soft drinks or 2 kinds of milk shakes. How many different orders are possible if a customer can order at most 1 hamburger, 1 fish sandwich, and 1 beverage but can order less?