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: Excuse me, do you have a few minutes? I work for the Star Bookstore, and we are doing a survey about people's reading habits. I want to ask you a couple of questions.
(A) M: I am afraid I did not quite catch what you were saying. Please repeat it. (B) M: I know that bookstore. The Sun Bookstore is very famous. (C) M: You mean you are doing a survey about people's eating habits, right? (D) M: Of course. I am willing to accept this survey. I like reading books.

Output: D


Input: Consider Input: F: Hi Tony, it's Alice, my cars broken down. ,M: Oh no, where are you? Have you had your car taken to a garage? ,F: I'm waiting for a repairman to come out and fix it. Can you believe it? I'm at some traffic lights and I'm causing a traffic jam. ,M: Don't worry. I'll come and get you. I need to go to the bank anyway.
(A) F: Please pick me up soon after you go to the bank. (B) F: Can you help me get my car back? It's now stuck in the road. (C) F: I'm waiting for you to pick me up at the bank. (D) F: I am really sorry, I did not catch that. Would you slow down, please?

Output: A


Input: Consider Input: M: Now let's stop talking and get going. I need to be in my office in 15 minutes or I'll be late for a meeting. ,F: OK. Bye.
(A) M: I will leave my office and go home in 15 minutes. Bye. (B) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (C) M: I need to give a lecture in 15 minutes, so I should go now. Bye. (D) M: I need to be in my office and attend a meeting in 15 minutes, so I should go now. Bye.


Output: D