THEM: how about 1 ball, 2 hats and 2 books?  YOU: no, i'll take 2 books and 1 hat.  THEM: how about 1 book and 1 hat, i get the rest.  YOU: no, i'll take 2 hats and 1 book.  THEM: i need a hat. i need one hat, one ball, and one book to make it a deal  YOU: i'll take 2 books and 1 hat.  THEM: fine.