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

Example Input: THEM: i'll take two books and a ball if that works for you? YOU: deal.
Example Output: Yes

Example Input: THEM: you can have the book and balls if i can have the hats YOU: how about i get the book one hat and one ball and you can have one hat and two balls? THEM: no deal. i cannot give up the hats YOU: okay then you can take the hats and i will take everything else.
Example Output: Yes

Example Input: THEM: if i can have the hats and the ball you can have the book YOU: i need hats, you have rest THEM: no deal. i need at least two hats and the ball YOU: same THEM: okay then no deal. i'm sorry. YOU: i guess so THEM: no deal. YOU: agreed THEM: no deal. YOU: yes.
Example Output:
No