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: Hi, I have a reservation under the name Sally. ,M: Hi, Sally, a room for 12 people at 7:30 PM. Is that right? ,F: Yes, we've got two more people coming, though. Is that OK?
(A) M: OK. That's 12 people in total, that's fine. (B) M: Oh, you'll have 16 people having dinner together. The room will fit. (C) M: I didn’t hear you. Please could you tell me again? (D) M: So you're a group of 14 people. No problem. The room is big enough.

Ex Output:
D


Ex Input:
F: Have you decided where to take Mr. Brown to dinner tonight? ,M: Well, I tried to get us into a private room at Ana's garden. Because the main dining room is too noisy. But the rooms were all reserved. I made a reservation at movie, though, for 7:30. I haven't tried it, but I heard it was good. ,F: I've been there, the food is excellent. It's right next to that Japanese place, Tami, where we had John's birthday party last month.
(A) M: I've tried the Japanese restaurant near Movie. (B) M: I know Movie is near a Japanese restaurant. But Movie doesn's support reservation. (C) M: I am really sorry, I did not catch that. Would you slow down, please? (D) M: Movie closes quite early. Before 7 o'clock as I remember.

Ex Output:
A


Ex Input:
F: May I meet Mister Lee? We had an appointment. ,M: Sorry, Mr Lee is out. It's 9:15 now and he will be back at 9:45.
(A) F: Really? Mr Lee is not out but I will wait 15 mintues? (B) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (C) F: Okay.  He will be back at 9:30 and I will wait 30 mintues. (D) F: So, it's 8:45 now and he will be back at 9:45. And I will wait one hour!

Ex Output:

B