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.

Example Input: M: Don't worry about your train sickness. I have brought some tablets with me that prevent train sickness. Here, take this one now. I'm sure you'll be alright on the train. ,F: It's very kind of you. By the way where is the dining car? ,M: The dining car is next to the sleeping car. Shall we eat our meals in the dining car? ,F: The attendant will bring some food here. But since the dining car is next to this carriage, we may just as well eat there. ,M: That's alright. How beautiful the scenery is. Look at the vast stretches of green fields. ,F: But it looks lovely only at this time of the year. It's rather dull and lonely in winter. ,M: That's why I prefer to travel in the summer and autumn. ,F: Me, too. I love summer, though it is hot.
(A) M: Really? You don't love summer, so you travel in winter now? (B) M: Yeah, I also don't  prefer to travel in the summer or autumn, so I travel in spring now. (C) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (D) M: Really? You love summer because it's not hot? And that's why you travel in summer now?
Example Output: C

Example Input: F: I can't imagine what's happened to Judy. ,M: Nor can I. I'm sure she planned to come to the party.
(A) F: But she hasn't appeared in the party. I feel worried. (B) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (C) F: Judy didn't know there's party today, so she doesn't show up. (D) F: I know she changed her mind. She won't come.
Example Output: A

Example Input: F: Can you go faster, sir? I have a meeting in 15 minutes. ,M: The traffic near the stadium is bad because of the pop concert. ,F: Should I get out and walk? ,M: No, don't worry. I know a short-cut that will get you there in 5 minutes.
(A) F: I am afraid I did not quite catch what you were saying. Please repeat it. (B) F: Thank you for supporting  my new album. Here is my signature. (C) F: Do you mean that you still need 5 more mins to get there? (D) F: Thank you so much sir. You are the best taxi driver in the world.
Example Output:
D