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: John, when was Tom born? ,M: He was born on May seventh 1982. He is 4 years older than I am, but our birthdays are on the same day.
(A) F: Oh, you mean you were born in 1982 and you are 4 years older than Tom? (B) F: I can't believe that you were born in 1986 and you are 4 years older than Tom. (C) F: I'm sorry, I don't understand. Could you say it again? (D) F: Since you are 4 years older than Tom, so you must have been born in 1978.
Example Output: C

Example Input: M: Did you hear the 6:00 o'clock news? ,F: No, I didn't, was there anything interesting? ,M: They've built another space station. They will send it up sometime next year. ,F: Oh, I've read about the plans somewhere. ,M: Just think, astronauts will live and do research work there. ,F: Really, but I wonder why you're so interested in such things. ,M: I've always been. I hope to go to the moon, one day.
(A) F: OK, I see. You mean you are interested in such news just because you hope to go to the moon, right? (B) F: Excuse me, could you repeat the question? (C) F: You are interested in such news just because you hope to go to the moon? Well, I've never read about the plans. (D) F: You are interested in such news just because you want to do research in space? But they've not built another space station.
Example Output: A

Example Input: M: How are things tonight, Jane? ,F: Very quiet. I'll be ready to go home now, so how do you like working at night? ,M: It's fine. After 3 months without a job, any work is OK with me. ,F: I know what you mean. You must be glad to have a job again. ,M: You'd better believe it. How long have you worked here? ,F: Not very long. I was hired right before Christmas last year. The job is not difficult, but I'd like to find something better. It's hard to make ends meet on this salary.
(A) M: I am afraid I did not quite catch what you were saying. Please repeat it. (B) M: Your salary is low, your work is difficult. (C) M: I agree. It's hard to make ends meet on this salary. (D) M: What is your job difficulties lie in?
Example Output:
C