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:
M: It's wonderful after the rain. The Sky is clear and the air is so fresh. ,F: You bet. Let's go for a walk outside on this fine day.
(A) M: Definitely, let's go out and enjoy the sunshine now. (B) M: It's been sunny for days. I feel really hot. (C) M: It's cloudy. I'd rather stay at home. (D) M: I am afraid I did not quite catch what you were saying. Please repeat it.

Ex Output:
A


Ex Input:
F: Today, I'd like to find out what people are doing to keep healthy. Excuse me, you look so good. What do you do to keep in shape? ,M: Nothing special. I ride my bike to work every day except when it rains. I love to eat out, so I eat whenever I want. I just try not to eat after 9 at night.
(A) F: I know that you go to work by cycling. How long do you cycle every day to keep fit? (B) F: I am really sorry, I did not catch that. Would you slow down, please? (C) F: So, you keep fit by doing different sports. Why don't you ride a bike? (D) F: Why do you never ride a bike? It is a good way to keep healthy.

Ex Output:
A


Ex Input:
F: Are you going to camp this summer? ,M: Oh no, I'm too old for that now. I'm going to a hiking trip. What are you going to do? ,F: This year I'm going to be a camp teacher.
(A) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (B) M: Sounds great. I am going riding this summer. (C) M: Well, instead of going hiking, I will go camping. (D) M: That's nice. I think I will go hiking this summer.

Ex Output:

D