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: M: Do you know Mister Green works in a hospital? ,F: Yes, I heard that the hospital is near the railway station.
(A) M: But I'm so surprised to hear that he works in the railway station. (B) M: But I'm so surprised to hear that he works in a hospital, and it's so inconvenient that the hospital is far away from the railway station. (C) M: I am afraid I did not quite catch what you were saying. Please repeat it. (D) M: But I'm so surprised to hear that he works in your company.

Output: C


Input: Consider Input: F: Tom, what are you going to do this weekend? ,M: I have no idea. Usually I stay at home and watch TV. Sometimes I play computer games. Do you have any good ideas? ,F: Let's go to the cinema. I haven't seen a movie for a long time. I heard Ice Age 4 is really popular. Let's go and see it. ,M: Oh, I'm not really interested in cartoons. How about playing tennis at the gym? ,F: OK. I like sports. When and where shall we meet? ,M: Let's meet at the gym at 9:00 o'clock on Saturday morning. ,F: OK. See you then. ,M: See you.
(A) F: It's been a while since the last time we play tennis. I am anticipating it very much. (B) F: Remember arrive at the gym at 10:00, don't be late. (C) F: Okay, remember show up at the cinema at 9:00 then. (D) F: I am really sorry, I did not catch that. Would you slow down, please?

Output: A


Input: Consider Input: M: Excuse me. Could you tell me the way to the zoo? ,F: Yes, it is just over there, across the street. ,M: Thank you. Oh, how did you learn to speak English so well? ,F: I listen to BBC English programs every day. ,M: Are they easy to follow? ,F: Yes, I use my shortwave radio and they have explanations in Chinese for the difficult grammar points. ,M: That sounds very helpful. How long have you listened to the programs? ,F: I started 3 years ago when I was in middle school.
(A) M: You have only studied English in middle school for three months! But you speak English very well. (B) M: I am really sorry, I did not catch that. Would you slow down, please? (C) M: Although you are only in junior high school, you have been learning English since primary school. You have been learning English for three years. (D) M: So you have been learning English for three years.


Output: D