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: How soon will Nancy come back?
(A) M: Well, I see Amy just once every two months. (B) M: Thanks for your concern. She will come back in a month. (C) M: I am afraid I did not quite catch what you were saying. Please repeat it. (D) M: You are right! Amy will go the university in a month.

Ex Output:
B


Ex Input:
M: Can I help you? ,F: Yes, I'm looking for how to manage your company. It was published this year. It should be very popular. ,M: Yes, it's in high demand. You have to wait for another 2 days.
(A) F: Your company has a good business. (B) F: The next class is English. (C) F: I didn’t hear you. Please could you tell me again? (D) F: Oh my god. I have to wait for another 4 days.

Ex Output:
C


Ex Input:
F: Hello, this is the International Student Office. This is Leah. How may I help you? ,M: This is Nathaniel Brown, from English Department. I'd like to speak to Miss Collins about my accommodation situation. ,F: Well, I'm sorry. She is out for lunch at the moment. Can I take a message?
(A) M: No thank you. I will wait for her to finish the meeting. (B) M: Sure. I want to have a talk with her about my accommodation situation. (C) M: Sure. I want to have a talk with her about my department. (D) M: Excuse me, could you repeat the question?

Ex Output:

B