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

Input: Consider Input: THEM: hey there! how do you feel about letting me take the book and the balls in exchange for the hats to you?  YOU: i don't really want to give up the book  THEM: unfortunately that's the only thing of value i have. so i can't really part with it.  YOU: so there is absolutley nothing else of value other than the book???  THEM: the balls have minimal value ; i'd be willing to give you 2 balls, 2 hats for 1 book, 1 ball?  YOU: i will take the 2 hats and 2 balls thanks.

Output: Yes


Input: Consider Input: THEM: i can part with the hats but would like the book and ball  YOU: i can not part with the ball but can split the hats or book.  THEM: i must have the book... i can cede all others  YOU: you an have the books if i can have the others.  THEM: deal.

Output: No


Input: Consider Input: THEM: you can have the 3 hats  YOU: okay.


Output: Yes


