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: How dangerous it was and how lucky the girl was. ,M: Yes, but for the passerbys quick action the girl would have been run over by the car.
(A) F: Yes, there was traffic accident. How bad luck the girl has. (B) F: I am really sorry, I did not catch that. Would you slow down, please? (C) F: The girl is badly ill. (D) F: I hate that thief.

Ex Output:
B


Ex Input:
M: Excuse me, can I join the library? ,F: Are you a student of our college? ,M: No, I'm not. But I hear that it's open to the public. ,F: That's right. ,M: OK. Does it cost anything to join? ,F: Well, it's free for students of our college while it is 125 pounds per year or 35 pounds per quarter for the public.
(A) M: I am really sorry, I did not catch that. Would you slow down, please? (B) M: That means if I pay by year, it will save me 15 pounds a year. Sounds good. (C) M: Wow, that will save me 25 pounds if I pay by month! That's a real bargain. (D) M: Sounds good! I just pay 35 pounds for the whole year! I'd like to join this library.

Ex Output:
B


Ex Input:
F: Hoo, thanks for stopping. Sometimes it can be impossible to get a cab in the rain. ,M: No worries. Where to? ,F: I'm going to fifth avenue and east twenty second street, no rush at all though. ,M: Well, that's good because it looks like we're not going to be able to move more than a few feet per minute. ,F: Well, that's what happens when it starts to rain during rush hour. I'm one of the lucky ones. Usually I would have an appointment around this time, but today I get to go home early. ,M: That's great, ma'am. I'll try to get you home as early as possible.
(A) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (B) F: Thank you very much. I hope to go back to my house. (C) F: Sure. It is sunny today and I'd like to go to the sixth avenue. (D) F: Thanks. I am hurry to go to West 22 in this sunny day.

Ex Output:

B