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: M: Excuse me, I'm mailing this package to Japan. ,F: Alright. Fill out this form about the contents and value. Do you want to insure it? ,M: I don't think so. It's only some books. ,F: Are you sending it surface mail or airmail? ,M: Airmail, please. ,F: OK. That's $25. ,M: Here's $30. ,F: Alright. Here's your change.
(A) M: So, as I'm mailing this package to China, it's free and the change is $ 30? (B) M: So, it needs $25, and as I give you $30, the change is $ 5? Okay, I see. (C) M: I am really sorry, I did not catch that. Would you slow down, please? (D) M: You mean the change is just $ 5? But you say that's $20, and I give you $30!

Output: B


Input: Consider Input: F: Jack, your new tie's so beautiful. Is it expensive? ,M: Not really. One tires $35. But if you buy 2 ties, you can save $5, so I bought 2.
(A) F: You paid $60 in total. (B) F: You paid $65 in total. (C) F: You paid $65 for 3 ties. (D) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that?

Output: B


Input: Consider Input: F: Is this Mister Brown's office? ,M: Yes, but he's gone out. Did you tell him beforehand about your coming? ,F: Yes, I found him yesterday and he told me to come here at 9:00 today, it's almost the time now. How soon will he be back?
(A) M: Yes, it is about 9:00. But if you have told him yesterday, I think he will be back soon. (B) M: I see, it is about 8:00 now. I will go and remind him to meet you, he is in the office now. (C) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) M: Now it is already 10:30. Why doidn't you tell him yeaterday that you would come today?


Output: A