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.

Input: Consider Input: F: Welcome to our restaurant. What kind of dishes would you like? Here's the menu for specialty. ,M: I like beggars chicken best but I am waiting for another 3 friends now.
(A) F: It's so nice of you to take your parents to dinner. (B) F: OK, I can take your order when your neighbors arrive. (C) F: I'm not surprised that your three other friends are going to the theatre instead of having a meal with you. (D) F: I didn’t hear you. Please could you tell me again?

Output: D


Input: Consider 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.

Output: D


Input: Consider Input: M: Let's discuss your education background. You were an English major, weren't you? ,F: Yes, that's right. But I liked French best.
(A) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (B) M: So your favorite subject is English even if it is not your major. (C) M: So your favorite subject is Law because that is your major. (D) M: So your favorite subject is French because that is your major.


Output: A