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:
M: Professor White, I'd like to have your advice on my article. ,F: It's good except for some spelling mistakes. What's more, the second paragraph is about another topic. It should be crossed out.
(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: People will have a bad first impression of you since your handwriting is so poor. (C) M: The level of a man's speech has nothing to do with his level of writing articles. (D) M: Thank you. I will take out the second paragraph that is not related to the article.

Ex Output:
D


Ex Input:
M: Did your teacher give a task for Monday? ,F: There is nothing to read in the textbook, but we have to see a movie and write a short report about it.
(A) M: Let's continue talking about the task. (B) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (C) M: Now that your teacher didn't give you any task for Monday, why should we continue to talk about this task? (D) M: You need to write a long paper about the movie? That's terrible.

Ex Output:
A


Ex Input:
F: Excuse me, do you know where the nearest subway station is? ,M: The nearest one is 10 minutes away on foot and it's the entrance to both line 5 and line 6, which one are you taking? ,F: I'm not so sure. I'm here on vacation. ,M: OK, where do you need to go then? ,F: I want to go to the M hotel. ,M: Oh, it's a long line 6, but it's 10:45. As I know line 6 stops running at 10:30 every night. ,F: OK. Do you know where it would be easier to get a taxi around here? ,M: It's really difficult to get a taxi around this area on a weekend night. ,F: Oh, no. What should I do? ,M: Wait, you can still take line 5. It runs until midnight on weekends. ,F: Does it have a stop near my hotel? ,M: No, but from Line 5 you can transfer onto line 1 which has a stop near the hotel and it runs until 11:45. ,F: That's great. Thank you.
(A) M: You can go there and take subway line 5. (B) M: You can walk there. (C) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (D) M: You can go there and take subway line 6 directly.

Ex Output:

A