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: Excuse me, could I ask you some questions? ,M: Of course. ,F: I work for an advertising agency and I'm doing some research. It's a new magazine for people like you. ,M: People like me? What do you mean? ,F: People between 20 and 35 years old.
(A) M: I am young. The magazine is not suitable for people like me. (B) M: So I am in the young group between 20 and 35, right? (C) M: So I am in the mid-aged group between 35 and 55, right? (D) M: I am afraid I did not quite catch what you were saying. Please repeat it.

Ex Output:
B


Ex Input:
M: Hey, I just finished reading a great book. It's about Steve Jobs. ,F: Really? But there are so many books about him now. What makes the one you read so special? ,M: Well, the one I read is by Walter Isaacson. It's different from the others, because Steve Jobs himself asked Isaacson to write it. ,F: Uhm, were they friends or something? ,M: Well, they knew each other well because Isaacson used to work for Time magazine in the 1980s. And he wrote about Apple products. But it was mostly a business relationship I think.
(A) F: Why did he offer to write about Steve Jobs himself? (B) F: Oh, the writer was a close friend of Steve Jobs'. (C) F: I am afraid I did not quite catch what you were saying. Please repeat it. (D) F: Oh, the writer used to write about Apple products.

Ex Output:
D


Ex Input:
M: Jane, how was school today? ,F: Oh, Daddy, it was fun. I made a new friend. Her name is Cindy. She's a new student. Her family moved here from Seattle, Washington. Cindy and I have a lot in common. We both like drawing, playing with dogs and eating pizza
(A) M: Why do you say it was not fun? You made a new friend and both of you like drawing, playing and making pizza! (B) M: Really? Cindy is not a new student. Both of you like drawing, dogs and making pizza. (C) M: OK, I see. Cindy and you don't have a lot in common but both of you like drawing, dogs and eating pizza. (D) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that?

Ex Output:

D