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:
M: You're from Canada, right? ,F: No, I'm not from Canada. I'm from the USA. ,M: Oh, sorry. Are you studying Japanese here? ,F: Actually, I'm not. I'm a business student.
(A) M: I'm from America so I teach English here. (B) M: When did you come here from your home country of America? (C) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) M: I grew up in Japan and studied Chinese there.

Ex Output:
B


Ex Input:
F: Batina and Simon are getting married next month. ,M: Really? How do you know? Have you seen them recently? ,F: Not for ages. I got Batina's call this afternoon. ,M: That's great! I hope will get invitations to the wedding soon.
(A) F: Don't be disappointed. They must have forgot to call us. (B) F: Don't be depressed. Batina is going to be happy with Simon and you will find someone else. (C) F: I am afraid I did not quite catch what you were saying. Please repeat it. (D) F: Calm down. Don't be so excited. They won't hold their wedding until next year.

Ex Output:
C


Ex Input:
F: Mike, can I be honest with you? ,M: Sure, Cindy. What's up? ,F: This food is tasty, but I'm not sure it's very healthy. ,M: Well, this was my first time to cook for you. I guess I was a little nervous. ,F: That's sweet. ,M: I put too much salt on the potatoes.
(A) F: Great! The food is delicious. (B) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) F: I like delicious potatoes. (D) F: The salty food is healthy.

Ex Output:

A