In this task you are given a small conversation between two persons and 4 options on how the conversation should continue. Your job is to choose the most reasonable option. The conversation and the options are separated by a newline character. Each dialogue in the conversation are separated by a comma. F and M indicate female and male, respectively.

Ex Input:
F: Charlie, do you know a restaurant called Bravo? ,M: Bravo? I know the name, but I'm not sure where it is. ,F: It's on George Street. The food there is excellent.
(A) M: Oh, I'm sure where it is. Let's talk more about its dish. (B) M: Excuse me, could you repeat the question? (C) M: Oh, really? It is not on George Street? Let's talk more about this street. (D) M: Yeah, the food there is excellent. Let's talk more about this restaruant.

Ex Output:
D


Ex Input:
M: Hi, Alice! Got any plans after the class? ,F: Not really. What about you? ,M: We will have our midterm exams next month. I plan to look for some important books and study at the library. Do you want to join me? ,F: Sure. I need to return some books. They're due today. Besides I can also read some weekly magazines and newspapers. ,M: Great. We can go to the swimming pool in the gym after that. ,F: That sounds like a good idea. We can cool down a little in such a hot summer. Are you good at swimming? ,M: Well, that's a good question. I haven't swam for almost 2 years. I think I need more practice. ,F: Oh, it's almost 9:00 AM. I need to hurry. I am running late now. See you after class in front of the library then. Bye. ,M: See you then.
(A) F: Excuse me, could you repeat the question? (B) F: See you after class in front of the library. (C) F: See you in front of the library tomorrow. (D) F: See you in front of the classroom tomorrow.

Ex Output:
B


Ex Input:
M: Does this bus really go to the mall? ,F: It goes all the way there.
(A) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (B) M: The bus at this bus stop will not go to the mall. (C) M: So I should wait for the bus at this bus stop. (D) M: I want to go to the airport.

Ex Output:

C