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: Why did you come to school by bike today? Is there anything wrong with your father's car? ,M: No, I just want to do what I can to protect the environment. ,F: That's a wonderful idea. I'll stop taking my father's car, too. ,M: That's great.
(A) F: Although your father's car broke down, we are students and this is what we should do. (B) F: As students, this is what we should do. (C) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (D) F: Since our son's car broke down, we should fix it as parents.

Output: B


Input: Consider Input: F: All the time I was at school, I wanted to be a nurse. But my mother worked in a shop and said it wasn't good to be on your feet all day. ,M: Then what's your job now? ,F: I'm doing what I always wanted to do.
(A) M: I see, you are a teacher now. (B) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) M: I see, you are a nurse now, and it's surprised me that you just wanted to be a nurse recently. (D) M: I see, you are a nurse now.

Output: D


Input: Consider Input: M: Have you seen Kate recently, Vicki? ,F: Yes, I have. I saw her a couple of days ago. She hasn't been very well in the last couple of weeks. ,M: Has she seen a doctor since she's been ill? ,F: Yes, she has. The doctor told her to take it easy for a while. But she hasn't been taking his advice. She's as busy as usual.
(A) M: The doctor ask her to work as usual. But she didn't listen to it. (B) M: Of course she didn't get well for not following the instructions from the doctor. (C) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) M: Yeah, she is too busy, she got no time to see a doctor. But she is getting better.


Output: B