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: How soon will Nancy come back?
(A) M: Well, I see Amy just once every two months. (B) M: Thanks for your concern. She will come back in a month. (C) M: I am afraid I did not quite catch what you were saying. Please repeat it. (D) M: You are right! Amy will go the university in a month.

Output: B


Input: Consider Input: F: Dad, look at this friendship quiz. ,M: Why don't you try it? The first question, how often do you get in touch with your friends? ,F: Hmm... My friends aren't in the same secondary school as me, and I dislike ringing people up. I don't call my friends, even once a week. ,M: That means seldom. Secondly, how many friends can you talk with when you are upset? ,F: Oh, I can't think of any. I usually talk with you or mom when I feel sad. ,M: Poor Susan, you can't rely on us all the time. The last question, your friend wants to talk with you. Where would you have the talk? ,F: Well, we can't talk in the classroom. Maybe I would talk to her in a shopping center. We can talk and shop at the same time.
(A) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (B) M: All right. So you talk with your teacher in a shopping center. (C) M: All right. So you only talk with your friend in a classroom. (D) M: All right. So you only talk with your friend in a cafe.

Output: A


Input: Consider Input: F: Excuse me. Can you speak Chinese? I like Chinese very much. ,M: Yes, I'm from Taiwan. I came here to study political science, but my English needs improving. I make too many grammatical mistakes. ,F: I want to study Mandarin and international relations. Maybe we could do a language exchange. ,M: You mean, you and I? ,F: Yes, why not? I mean, if you often come to this cafe too, we could meet here and practice Chinese and English. ,M: Sounds like a good idea. How often would you like to do it? ,F: Let me see. I think I could spend 2 hours a week in language exchange.
(A) M: I am afraid I did not quite catch what you were saying. Please repeat it. (B) M: I'll talk to you later after we finish your birthday party, my daughter. (C) M: You suggest only one hour at this cafe next time. I would be ok. (D) M: Two hours each time at this same cafe. That sounds perfect to me.


Output: D