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

Input: Consider Input: THEM: i'd like the books.  YOU: deal.

Output: Yes


Input: Consider Input: THEM: i would like the book and 1 hat and 1 ball  YOU: i can not make that deal. i need the book and the hats you can have the balls  THEM: no can do i need the book and the balls if you want the hats  YOU: i need the book the most and at least one other item  THEM: yeah the book is really non negotiable. so if you won't budge on the book then there will be no deal  YOU: no deal.  THEM: no deal  YOU: no deal  THEM: no deal  YOU: no deal.

Output: No


Input: Consider Input: THEM: ill take the hat and two balls and leave you the books?  YOU: no deal, i at least want the hat.  THEM: ok how about this ill take all the books and balls you get the hat?  YOU: deal.  THEM: ok so i get the books and ball you get the hat.


Output: Yes


