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: M: Do you like this house? ,F: Yes, it's beautiful. ,M: It's perfect for us and the kids. ,F: 3 bedrooms, 3 bathrooms and a big backyard. ,M: And we can afford it!
(A) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (B) F: This room is cheap, but it's too small. Let's have a look at others. (C) F: This office is big and beautiful, but we can't afford it. (D) F: I love it. This house is big and beautiful. We can go through the buying process.

Output: D


Input: Consider Input: M: Happy birthday, honey. ,F: Oh, a bunch of flowers. Thank you. You're always so sweet. ,M: Well, I intended to buy you a fruitcake and some apple pies from Collin Street Bakery, but they're all sold out. So I bought you these flowers.
(A) F: I’m sorry, I don’t understand. Could you say it again? (B) F: You bought me flowers? What a surprise, my son. (C) F: I really love the flowers you bought me. (D) F: You bought a fruit cake for my birthday. I love cakes.


Output: C