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

Ex Input:
THEM: all books to me, u have else  YOU: sure.

Ex Output:
Yes


Ex Input:
THEM: you can have the hats  YOU: ok  THEM: so deal i take the book and ball you take the hats.

Ex Output:
Yes


Ex Input:
THEM: gimme hat and a book  YOU: i can not let the hat go, i need the hat and 1 book  THEM: need hat, or no deal  YOU: i can not give up the hat, how about i take the hat and you get the rest?  THEM: cant be done  YOU: come on, i will just take the 1 hat  THEM: negative  YOU: no deal then i guess  THEM: correct  YOU: that is bad  THEM: superbad.

Ex Output:

No


