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

Input: Consider Input: THEM: i just want the balls  YOU: and so you shall have them, if i get the rest  THEM: deal.

Output: Yes


Input: Consider Input: THEM: hello! i'd like the two balls and the hat, you can have the books.  YOU: no deal  THEM: ok, i'd need two balls. you can have the hat and both books then.  YOU: how about no  THEM: well you're not offering me any ideas. what are you offering?  YOU: i can give you hat and one book  THEM: i'm unable to do that. at the very least, i'd need both balls, you keep the hat and both books.  YOU: yeah not gonna happen, just click on no deal  THEM: ok, no deal. we have to keep saying, "no deal" until the button becomes active.  YOU: no deal.

Output: No


Input: Consider Input: THEM: hello, i would like the 2 books and 1 ball.  YOU: ok deal.


Output: Yes


