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: Hi, miss. Could you tell me where Mr. Johnson's office is? ,F: Well, his office is on the twenty second floor, but the lift only goes to the eighteenth floor. So you'll have to walk the rest of the way. ,M: Thank you very much.
(A) F: You have to walk the rest three floors to get Mr. Johnson's office. His office is on the twenty second floor. (B) F: You have to walk the rest four floors to get Mr. Johnson's office. His office is on the twenty second floor. (C) F: You have to walk the rest three floors to get Mr. Johnson's office. His office is on the twenty third floor. (D) F: Excuse me, could you repeat the question?

Output: B


Input: Consider Input: F: Michael, what time is it? We are going to be late for the party. ,M: It's a quarter past six. Don't worry, Rebecca. We will be fine. ,F: But we have to be at Sarah's house by 6:30 for her surprise birthday party. The traffic is getting heavier.
(A) M: I’m sorry, I don’t understand. Could you say it again? (B) M: We have to be at Sarah's house by 6:00 for her baby' s birthday party. (C) M: Oh my god. You' re right! Let' s go to celebrate Sarah's birthday! (D) M: The traffic is getting lighter, we will not be late for Rebecca' s party.

Output: C


Input: Consider Input: M: Honey, what do you think of this kind of wooden chair for our restaurant? ,F: It looks great, but it's kind of small, just like the chairs in my company. How about this green one here.
(A) M: I want to order this meal. (B) M: I'll wait in your office. (C) M: I’m sorry, I don’t understand. Could you say it again? (D) M: I think so. That's the kind of furniture we need.


Output: D