北大ACM试题编号1017

DescriptionAfactoryproducesproductspackedinsquarepacketsofthesameheighthandofthesizes1*1,2*2,3*3,4*4,5*5,6*6.Theseproductsarealwaysdeliveredtocustomersinthesquareparcelsofthesameheighthastheproductshaveandofthesize6*6.Becauseoftheexpensesitistheinterestofthefactoryaswell