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: Hello, Tom. How are you finding teaching here? ,M: I get the feeling that somehow the school successful. The buildings and furniture are so old, yet amazingly, the students seem happy. These days you can't compete in less you can really provide the best. That's the trouble with these small family owned schools, so many are taken over by large companies. They seem to offer a whole range of subjects, not just English and maths. ,F: I think that's good. Because they can bring together a mixture of teachers of different subjects. A geography teacher say might give you fresh ideas that you can apply and teaching English or math. ,M: I've always found it a real eye opener talking to other English teachers, because people's methods of teaching the same subject can vary so much. Actually, I sometimes feel that about classes. I feel it's my role as the teacher to make sure we get on all right, but I can't always do it.
(A) F: Really? You feel it's your role as the teacher to make sure we get on all right and you can always do it? Wow, you are a good math teacher! (B) F: I am afraid I did not quite catch what you were saying. Please repeat it. (C) F: So, you mean as an English teacher, you feel it's not your role as the teacher to make sure we get on all right? (D) F: OK, I see. And I think you are a good English teacher.

Output: D


Input: Consider Input: F: Did the children enjoy the holiday camp or were they all homesick? ,M: Well, I must admit some of the younger kids were a little bit unhappy, because they've never been away on their own before and didn't know some of the other kids. But soon they recovered. By the last day, they didn't want to go home because they were having such a great time.
(A) F: It is too bad that kids didn't get used to the new environment and didn't have a good time in the end. (B) F: Well, it is common that children felt unfamiliar with the new environment at first. (C) F: It is a pity that they are unhappy to attend the trip the whole time. (D) F: I’m sorry, I don’t understand. Could you say it again?

Output: B


Input: Consider Input: M: Helen, how do you like your new apartment? ,F: Well, I wish I had moved in, the man who lives upstairs often plays the piano till midnight. I really cannot stand it. ,M: Why don't you ask him to stop? ,F: I've tried, but it doesn't work, he never listens to me. What's worse, he isn't the only one that I cannot stand. The woman who lives next to me often comes over to borrow things, but she seldom returns anything. ,M: Then, don't lend her anything.
(A) F: The woman is the only annoying neighbor as she knocks on my door  too often. (B) F: I've never seen the woman next to me, but she often plays the piano late at night. (C) F: Sure, she never returns anything she borrowed. Luckily nobody plays the piano. (D) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that?


Output: D