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: Welcome to our program. Today we have invited Fred Watson, an expert on the environment to talk to us.
(A) M: Nice to meet you guys. Let' s talk about environmental problems today. (B) M: Hello, everyone! My name is Bob, today, let' s talk about modern technology. (C) M: I’m sorry, I don’t understand. Could you say it again? (D) M: Thanks, I' glad to be your studio. Today, our topic is about industrial development.

Output: A


Input: Consider Input: F: Hello, Jim. Looking forward to seeing you. It's not a bad journey, really. ,M: But what do I do when there? How can I get to your place? ,F: Don't worry. When you get to Waterloo, take the underground to Regents Park. I'll meet you there at the gate, which will be obvious when you get there. You can't miss it. By the way, when are you leaving? ,M: I am ready now. I'll get the... the 1138, a southern train, I think it is. That's non-stop to Waterloo and do I get the underground there? ,F: That's it. You will go straight there on the underground. You want the Bakerloo line to Regents Park. It's only about 4 stops. Make sure you get a northern underground though. You want northern Bakerloo, OK? ,M: OK, I'll be there soon. ,F: Oh, by the way, I'll be with Tom. We're going to play badminton later at the college badminton club. Hey, would you like to join the club? Its gym is modern and quite bright and it has some great special services for members. Oh, if you want to catch your train, you'd better go now. It must be nearly 11:30 already. ,M: Wow, you're right and it's just after half past. I didn't realize it was so late. I have less than 10 minutes. I better take my bag right now and run. See you around 12:30. Bye.
(A) F: So, you mean you will not take your bag right now and run? Oh, hurry up. We will meet around 11:00. (B) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) F: Yeah, it must be nearly 10:30 already. As we will meet around 12:30, you don't need to hurry. (D) F: Okay. We will meet around 12:30. Oh, I am so excited that we will meet to do some sports.

Output: D


Input: Consider Input: F: Did you rent that club for the party this April? ,M: No, it was already booked until the end of the month. Maybe I can get it for the next party in August.
(A) F: Do you plan to hold a party in April? Your next party will be held in May, right? (B) F: So you didn't rent the club, because it was already booked until the start of the month. (C) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (D) F: Did you book a ticket for a party? Or you can get it for the next party in May.


Output: C