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: F: What time is it, Steven? ,M: Uh, it's 7:30. Aren't you going to finish your breakfast? ,F: I don't have much time. I've got a lot to do downtown today. ,M: If you're coming into the city, we may have lunch together.
(A) F: Well, we are living in the center of the city, so since today we are going to the countryside, I think it will take a long time to go there. (B) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (C) F: That's awesome, but you know we are living out of the city, so perhaps I'll be late for a few minutes fot the aerobics class. (D) F: That's great, but you know we are living out of the city, so perhaps I'll be late for a few minutes.
Example Output: D

Example Input: M: Hello I'm Tom, who are you? ,F: I'm Marry. I'm from Korea. ,M: Really? How nice. How long have you stayed in the US? ,F: Four years. ,M: That's a long time. Have you been back to your country? ,F: No. ,M: You must miss your home. ,F: Sure, but gladly, my family are going to visit me next week. ,M: You must be very excited. ,F: Of course. ,M: How do you like New York? ,F: It's a modern city, full of energy and people here are quite friendly.
(A) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (B) M: Yes, New Yorkers are friendly, but you Spanish are friendly, too. (C) M: I agree with you. People in New York are busy and unfriendly. (D) M: So as a local American, you think New Yorkers are energetic.
Example Output: A

Example Input: M: Good morning, Miss Gray, could I talk with you for a moment? ,F: Yes, Tom, come in. What's the matter? ,M: I want to change my deskmate. ,F: Why? Don't you get on quite well with Lisa these days? ,M: Yes, but actually it is she who wanted to change the deskmate. She said she didn't want to be my friend anymore. ,F: Oh, why? Can you tell me the reason? ,M: Yesterday, she wanted to borrow a pen from me, but accidentally I didn't have an extra 1 to lend her, so she got angry with me and didn't want to be my deskmate anymore. ,F: OK, Tom, it is not so serious actually. Later I will talk with Lisa. I'm sure she will understand you. Now it is time for the math class. Let's go. Oh, by the way, can you help Miss Cook hand out the grated English homework?
(A) M: OK, I don't want to talk to you about these things in the classroom. I'll talk to you in your office after this class. (B) M: I am really sorry, I did not catch that. Would you slow down, please? (C) M:  Miss Gray, I want to apologize to you in your office, I should not quarrel with her in the classroom. (D) M: It was nice talking to you in the office. Thank you for helping me.
Example Output:
D