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: Gosh, we've been waiting for ages? What's the matter? ,M: Who knows? It always leaves on time more or less. But in the middle of winter, you have to expect the delay here sometimes. In fact, the trains also sometimes get delayed by snow on the lines or the planes by fog on the runway. Actually, it's probably rain that's holding up things for us right now.
(A) F: Yes, the rain may be the reason that the trains get delayed. (B) F: I am afraid I did not quite catch what you were saying. Please repeat it. (C) F: It's probably flog that's holding up things for us right now. (D) F: The weather forecast says the rain has stopped.

Output: A


Input: Consider Input: F: Hi, I have a reservation under the name Sally. ,M: Hi, Sally, a room for 12 people at 7:30 PM. Is that right? ,F: Yes, we've got two more people coming, though. Is that OK?
(A) M: OK. That's 12 people in total, that's fine. (B) M: Oh, you'll have 16 people having dinner together. The room will fit. (C) M: I didn’t hear you. Please could you tell me again? (D) M: So you're a group of 14 people. No problem. The room is big enough.

Output: D


Input: Consider Input: F: You are not looking very cheerful. What's the matter with you? ,M: Oh, nothing special. I'm just thinking a lot. ,F: About the job? ,M: About everything. About catching the same train every morning, sitting in the same office all day and watching the same television program. ,F: You need a holiday. ,M: It wasn't always like this, you know. ,F: What do you mean? ,M: Well, our great great grandfathers had more fun, didn't they? I mean, they haunted for their food and grow their own vegetables and dip things for themselves. We do the same sort of job for years and years. There's no variety in our lives.
(A) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (B) F: You mean you are feeling unsatisfied. Life is too easy for our generation. (C) F: So you feel excited because you don't have to grow vegetables by yourself like your father did. (D) F: Why do you still feel excited although you don't have to grow vegetables by yourself like your father did?


Output: B