THEM: could i have a book and both hats  YOU: you can have the hats, but i need the book and both balls.  THEM: so i can have the books and both hats?  YOU: no. i need the book and both balls.  THEM: is i give you the book i will need everything else  YOU: i can't give you that. at the very least i would need 1 book and 1 ball.