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: What do you usually do on Sundays? ,M: I go shopping in the morning, work in the garden in the afternoon and read the newspaper after dinner.
(A) F: Oh, you usually go shopping on Sunday afternoons. (B) F: Oh, you usually work in the garden on Sunday afternoons. (C) F: I am afraid I did not quite catch what you were saying. Please repeat it. (D) F: Oh, you usually read the newspaper on Sunday afternoons.

Ex Output:
B


Ex Input:
F: I finished the report. May I leave the office early today? I have to pick up my parents at the airport. ,M: But you are supposed to meet Mr.Black at 4:00 o'clock, aren't you? Can't you ask somewhere else to go to the airport?
(A) F: But I have already finished writing the report. Why can I go pick up my parents at the train station? (B) F: Oh, I forgot about that. I will meet Mr. Black then. (C) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) F: OK, I'll ask Mary to pick up my parents at the train station then.

Ex Output:
B


Ex Input:
F: Hi, there, what are you looking forward today? ,M: I'm just looking. ,F: Well, how about a ring for someone special? ,M: There is no one special.
(A) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (B) F: She must be gorgeous in this red dress. (C) F: This shinny necklace doesn't suit your girlfriend. (D) F: Well, it is never too early to buy a ring for someone special.

Ex Output:

D