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: Did you see that new play at the Odeon Theater? ,F: I saw about half of it. It was so boring and strange. I got up and left. ,M: If I didn't know better, I'd say we saw different plays.
(A) F: Why did you disagree with me and think the new play was interesting? (B) F: You also think that the new play was boring, right? (C) F: I am afraid I did not quite catch what you were saying. Please repeat it. (D) F: So you think the old play was interesting but not the new one, right?
Example Output: A

Example Input: F: I'm planning to go to Canada on vacation. ,M: What places are you going to visit? ,F: First, I'll spend a few days in Vancouver. Then I'll take a train through the Rocky Mountains. ,M: Oh, you're riding through the Rocky Mountains. That's really exciting. ,F: Then I'll fly to Toronto and take a bus to Niagara Falls. I will take a boat under that huge waterfall. ,M: Wow, that's wonderful. You're so lucky! ,F: Well, I hope I don't get seasick. I'll finish my trip in Nova Scotia. I'd like to bike around some small fishing villages. ,M: Have a great time and take lots of pictures!
(A) F: Thank you. I really had a wonderful experience yesterday. (B) F: I am reading an introduction to Canada, but I will not go to Canada. (C) F: I’m sorry, I don’t understand. Could you say it again? (D) F: Thanks a lot. My travel plan is perfect. I will have a good time.
Example Output: D

Example Input: F: Did you tell Carl that the concert will be starting late? ,M: I've tried several times, but his line has been busy.
(A) F: So your problem is you are not able to get through to Carl, right? (B) F: So your question is that the line for concert tickets is too busy, right? Then why don't you call Carl? (C) F: Your problem is that Carl is going to be late for the concert, but you haven't called him yet. (D) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that?
Example Output:
A