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.

Ex 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.

Ex Output:
C


Ex Input:
F: Cindy, how are you getting along with the translation work? ,M: I have written and rewritten so much that I don't know if I'll ever get it finished.
(A) F: Don't be discouraged. Your translation can be done well. (B) F: I’m sorry, I don’t understand. Could you say it again? (C) F: You are so satisfied with your translation work, right? (D) F: Don't feel so sad about that your written work is not good enough.

Ex Output:
A


Ex Input:
M: Hi, this is Tom. I'm just calling to let you know that I will be late for today's meeting. ,F: Oh, I see, that's not good. We have a meeting with clients. So you really should be on time. ,M: Yes, I know, it's just that my car was stolen and now I'm in the taxi. Right now the traffic's really bad as well, so really don't know when I'll be able to make it into the office. ,F: Um, well, thanks for calling. I'll inform Mr. Darren that you'll be late. I don't think he will be too angry.
(A) M: Thanks. I am at my home now and I'll go immediately. (B) M: Thanks. I am at my office now and I'll go home immediately. (C) M: Excuse me, could you repeat the question? (D) M: Thanks. I am in a taxi and I'll be home in no time.

Ex Output:

C