THEM: what would be good for you?  YOU: if i take the book and 2 balls you could have a hat and ball.  THEM: if i take all the two balls and the book you can take one ball and the hats  YOU: i cant do that i could take the book and a hat and you could take all the balls and a hat.  THEM: ok deal  YOU: ok so i get the book and a hat and you get the balls and a hat.