Starbucks has 8 under 200 calorie drinks. Caramel Frappuccino Light, Soy Chai Tea Latte, Iced Coffee with Classic Syrup, Brewed Pike Place, Nonfat caramel Macchiato, Nonfat Iced green tea latte, Iced Skinny Vanilla Latte, nonfat caffe mocha. Each drink comes in two sizes medium and large. Develop a Gray Coding system such that the customer can tell the Barista the code and it specifies both the type of drink and the size