Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.

Ex Input:
THEM: one hat to me, all else to you  YOU: deal.

Ex Output:
Yes


Ex Input:
THEM: can i take the balls and the hats?  YOU: just hats  THEM: sorry, can`t do that. really need them  YOU: just hats and one ball then  THEM: 2 balls and one hat. i won`t go any low  YOU: how about two hats one ball  THEM: no deal, that does not work for me. want the 2 balls and one hat. this is as low as i go  YOU: yeah no deal  THEM: no deal then, sorry  YOU: no deal.

Ex Output:
No


Ex Input:
THEM: i would like a book, a hat, and the ball.  YOU: you can have all the hats but i would like a ball and a book  THEM: i need the book.  YOU: ok. you can have the book, if i get all the balls  THEM: how about the book and 1 hat?  YOU: how about one ball for me and you can have the hats and a book  THEM: deal.

Ex Output:

Yes


