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: F: The children have been playing in the mountains for a long time. Why haven't they come back? I am really worried about them. ,M: Look at the sky. Black clouds are gathering and strong winds are blowing. It seems a heavy rain will fall soon. ,F: They haven't brought anything to protect themselves. They will be caught in the rain I think. ,M: Don't be worried too much about them. Anyhow, they're old enough now. They ought to be able to take care of themselves. ,F: I'm afraid they will catch a cold if they are caught in the rain. You see it's a little cold now.
(A) M: I’m sorry, I don’t understand. Could you say it again? (B) M: Don't worry, they will not be caught in the heavy rain. It is sunny outside. (C) M: You can ask them if they pass the exams directly, they are in their bedrooms. (D) M: Don't worry about the children, they won't be caught in the heavy rain.

Output: D


Input: Consider 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.

Output: A


Input: Consider Input: M: Lisa, did you enjoy your trip to England? ,F: Yes, I did. We met some nice people there and I got to see a lot of famous places. ,M: Where did you go? ,F: We visited Buckingham Palace, Tower of London and the British Museum on the first day. The next day, we went to Hyde Park and London Zoo. Then we went on a boat ride on the Thames River.
(A) M: So, you didn't enjoy your trip to England at all and you visited Hyde Park on the first day? (B) M: Really? You visited the British Museum on the first day? Oh, that's great. It's a nice place. (C) M: So, you went to New York zoo and visited the British Museum on the first day? Okay, I see. (D) M: I am really sorry, I did not catch that. Would you slow down, please?


Output: B