# Kata harry Potter To try and encourage more sales of the 5 different Harry Potter books they sell, a bookshop has decided to offer discounts of multiple-book purchases. One copy of any of the five books costs 8 EUR. Your mission is to write a piece of code to calculate the price of any conceivable shopping basket (containing only Harry Potter books), giving as big a discount as possible. If, however, you buy two different books, you get a 5% discount on those two books.