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

Input: Consider Input: THEM: how about you get two balls,  YOU: deal  THEM: how about some begociations.

Output: Yes


Input: Consider Input: THEM: how bad do you want a book  YOU: keep the rest. i want the ball.  THEM: sorry but i also need the ball  YOU: i'll take the hats if you want the rest.  THEM: you get the hats and i get 1 book and 1 ball - deal!

Output: Yes


Input: Consider Input: THEM: i have been searching for a cowboy hat my entire life. could i please have it  YOU: i need the hat as well. are you willing to part with it?  THEM: i can part with anything it is just my life long dream to own a hat just like that.  YOU: okay, if i can have the hat and the book you can have the balls.


Output: No


