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.

Input: Consider Input: F: Welcome to our restaurant. What kind of dishes would you like? Here's the menu for specialty. ,M: I like beggars chicken best but I am waiting for another 3 friends now.
(A) F: It's so nice of you to take your parents to dinner. (B) F: OK, I can take your order when your neighbors arrive. (C) F: I'm not surprised that your three other friends are going to the theatre instead of having a meal with you. (D) F: I didn’t hear you. Please could you tell me again?

Output: D


Input: Consider Input: F: Hello, Richard. Nice to meet you. ,M: Hi, Barbara. Haven't seen you for ages! ,F: I've just come back from Canada. I was helping in a research program and I stayed in a town near Toronto for 2 months. ,M: Oh, how nice! Did your program go smoothly? ,F: Yes, and I'm going back in March to continue. ,M: Did you enjoy your stay in Canada? ,F: Oh, yes. They were very nice people. I mean, the people I worked with, very friendly and very helpful. ,M: Did you travel a lot there? ,F: No, we were very busy trying to finish the first part before Christmas. But my friends took me to quite a few parties and I never forget the big meal on Thanksgiving Day, and the fun we had on Boxing Day. ,M: What Day? ,F: Boxing Day. The day following Christmas Day.
(A) M: Really? The day before Christmas Day? So, the Boxing Day falls on December 24? (B) M: Excuse me, could you repeat the question? (C) M: Really? The day following Christmas Day, so the Boxing Day falls on December 26? (D) M: Really? The day following Thanksgiving Day, so the Boxing Day falls on December 26?

Output: C


Input: Consider Input: F: It was such a lovely bright morning. I almost wish I didn't have to work. ,M: Well, there is snow to come later tonight. But there will be some heavy rain first in the afternoon.
(A) F: I’m sorry, I don’t understand. Could you say it again? (B) F: Will it be rainy tonight? (C) F: It was really snowy this morning. (D) F: Oh really, it doesn't look like it's going to be rainy this afternoon.


Output: D