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: What a terrible house! ,M: I'm sick of it, too! ,F: The doorbell doesn't work, there's no hot water, and the building is so old that it seems to be falling apart.
(A) M: I am really sorry, I did not catch that. Would you slow down, please? (B) M: I caught a cold after taking a cold bath last night because there was no hot water. (C) M: There is no doorbell in this restaurant, you have to wait for the waiter to open the door for you. (D) M: There is no hot water in the kettle. You can get some from the kitchen.

Output: B


Input: Consider Input: M: Ella, what languages do you speak? ,F: As you know Korean is my first language. I also speak English and Chinese. How about you? What languages do you speak? ,M: English, German and French. While I was studying in Europe, I used French in German all the time. Now, my French is not so good but I do keep my German up.
(A) F: My mother tongue is Korean, but I can't speak any other language. (B) F: I’m sorry, I don’t understand. Could you say it again? (C) F: We can both speak English. English is my mother tongue. (D) F: My native language is Chinese, but I can't speak English.

Output: A


Input: Consider Input: M: What seems to be the trouble? ,F: I think I'm running a fever. ,M: I see. Let me take your temperature.
(A) F: I want to send this letter to Beijing. (B) F: I am afraid I did not quite catch what you were saying. Please repeat it. (C) F: I want to buy some hot strips. (D) F: Doctor, I feel terrible.


Output: D