A cafeteria offers 17 types of pizza and 5 types of soda. Bob goes there everyday for lunch, always buying two slices of pizza and one soda. However, he never gets exactly the same thing on two consecutive days (that is, each time, the drink or at least one of the slices is different from what he had yesterday). In how many ways can Bob choose his lunch for the next 30 days if he just returned from a vacation (and so hasn't been at the cafeteria for the past few days)?