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: Eddie, you've got to come over and see my parrot. It's learning so many words now. ,M: Really? Last time I saw him all he could say was something that sounded like hello. ,F: Well, now, he can a sing a song too. ,M: Which song did you teach him? ,F: Calorie. You know that popular song by a group of girls right? Actually I didn't teach Goby the words. I was dancing to the song on the radio and he just picked it up. ,M: That's a pretty smart bird. I'll come over after school today. Let's take a video of him and put it on line.
(A) F: I’m sorry, I don’t understand. Could you say it again? (B) F: I will send you the link, so you can watch the video online after school today. (C) F: Come to my house after school, I will take videos of you. (D) F: My bird would be waiting for you to teach him more words after school today.
Example Output: A

Example Input: F: Oh, my! I'm bored with this job. ,M: Hey! There's a job that's perfect for you in today's paper. You might be interested in it. ,F: Oh, what is it? What do they want? ,M: Wait a minute. Ah, here it is. The China Trip Agency is looking for a translator from Chinese to English. ,F: Well, I got a degree and plenty of experience. What else are they looking for? ,M: Just that. A university degree and two to three years of experience as a translator in a professional environment. The person should have a lively and open mind, effective communication skills, and the ability to work alone or as part of a team.
(A) F: Oh, but I have no relevant experience, which is necessary for the new job. (B) F: I’m sorry, I don’t understand. Could you say it again? (C) F: That's great. I get a fresh mind, which is necessary for the new job. (D) F: That's great. I have excellent writing skills, which are necessary for the new job.
Example Output: B

Example Input: F: I'm going to China to visit places of interest. Do you know many? ,M: Oh, I know a little about the Forbidden City, located in the center of Beijing. It covers an area of 150,000 square meters and has 9000 rooms.
(A) F: Excuse me, could you repeat the question? (B) F: The total area of the Forbidden City in Tianjin is 150000 square metres. How wonderful! (C) F: The total area of Beijing is 15000 square metres and the Forbidden City is about 1000 square metres. How wonderful! (D) F: The total area of the Forbidden City is 150000 square metres. How wonderful!
Example Output:
D