Eddie is ordering lunch at a fast food restaurant with the following menu.  Mains: Sandwich, Burger, Pizza  Sides: Chicken Wings, Salad  Drinks: Coffee, Tea, Coke  If Eddie chooses to buy one main, one side, and one drink, how many different ways can he order lunch? 
Overseas Competition->Knowledge Point->Counting Modules->Law of Addition and Multiplication->Principle of Multiplication
$$3\times2\times 3=18$$ 