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: If you want to get the washing machine fixed in time, you'd better get a mechanic to do the job rather than do it by yourself. ,M: You have a point, but you know I'll have to wait for a long time to get a mechanic.
(A) F: But a mechanic is an expert. He can fix the washing machine. (B) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (C) F: Okay, I'll call for a mechanic to fix the fridge in time. (D) F: Okay, I'll call for a mechanic to fix the TV in time.

Ex Output:
A


Ex Input:
M: Wow, this jacket has so many pockets, it'll be great for camping. ,F: It cannot be damaged by water, too, and it folds up so that it can fit in your back pocket. ,M: Honey this is the best birthday gift ever.
(A) F: I can see that this jacket has too many pockets, so it may not come in handy sometimes. (B) F: I'm glad you like it. This is suitable for outdoor activities. (C) F: I can see why you don't think this jacket is suitable for everyday use. (D) F: Excuse me, could you repeat the question?

Ex Output:
B


Ex Input:
F: Is there any bus from here to the sixth Street, officer? ,M: Yes, any bus will take you there. There is a bus stop over there. ,F: Thank you very much.
(A) M: I'll drive you there. (B) M: What size do you want, madam? (C) M: I’m sorry, I don’t understand. Could you say it again? (D) M: You're welcome. As a policeman, I'm happy to help.

Ex Output:

D