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: We're going to play football at noon, join us? ,M: Sorry, I hurt my leg last week because I fell off my bike and the doctor said I have to stay in bed for 4 weeks.
(A) F: Since you have to stay at home at noon, I'll bring you some lunch. (B) F: Tell me when you go to ride a bike this noon. I want to join you. (C) F: Where will you play football this noon? (D) F: I didn’t hear you. Please could you tell me again?
Example Output: A

Example 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.
Example Output: D

Example Input: M: What's the matter with you? ,F: Doctor, I got a stomachache last night. I thought I would be better this morning, but I still don't feel well now. ,M: Don't be nervous. Please tell me what you ate.
(A) F: Okay, teacher. Actually I felt better this morning. (B) F: Excuse me, could you repeat the question? (C) F: I have to remind for a second, doctor. But I feel well now.IOkay (D) F: I don't remember, doctor. I got sick last night.
Example Output:
D