A television programmer is arranging the order that fivemovies will be seen between the hours of 6 P.M. and 4A.M. Twoof the movies have a Grating, and they are to be shown in the first twotime blocksOne of the movies is ratedNC-17, and it is to be shown in the last of the timeblocks, from 2A.M.until 4A.M. Given these

restrictions, in how many ways can the five movies be arranged during the indicated timeblocks?