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.

Ex Input:
F: So how's your new job going, David? ,M: It's going really well. I started 2 months ago and it's great. ,F: Which countries are you flying to? ,M: Mostly those in South America.
(A) F: I'm very happy that you're used to this job on the plane. I was a little worried when you first started a month ago. (B) F: So you do like your work on the plane, don't you? (C) F: Excuse me, could you repeat the question? (D) F: Does that mean the restaurant you work in South America?

Ex Output:
B


Ex Input:
F: Look at this picture when I was in grade 3 in my senior high school. ,M: Wow, that's amazing. Looks like you've lost some weight since then. ,F: Actually, my weight is about the same. But I've grown a couple of inches. ,M: So you look thinner now.
(A) F: Better than I was in Grade 2 in senior high school. That's when I had the picture taken. (B) F: I've grown taller since I took the picture in Grade 3 in senior high school, but I've also put on some weight. (C) F: I didn’t hear you. Please could you tell me again? (D) F: I used to be short, so I didn't like photos. That one was taken in Grade 2 in my junior high school.

Ex Output:
C


Ex Input:
M: My doctor says I need an outside interest to get my mind off my work. Can you suggest a hobby?
(A) F: I am really sorry, I did not catch that. Would you slow down, please? (B) F: So you are here to  ask an introduction since your doctor said I  need an outside interest. (C) F: So you are here to ask for advice. (D) F: So you are here to ask for advice since your doctor said you need a inside interest.

Ex Output:

C