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: M: Welcome back to your student union radio station. I'm with Catherine, who just successfully climbed the Great Mountain, Mont Blanc. Actually, she once did. The same climb in 2007. Catherine, was it easier the second time around? ,F: In many ways. They were totally different experiences. The first time I went as part of an organized group. We took 4 days to reach the top. This year, I decided to go alone with just one overnight stop, actually you're never really alone. It's all been crowded up there. The first climb, was quite difficult is the weather was very changeable, and we found ourselves climbing in very cold windy conditions. The weather this time was wonderful. Plus. I spent a few days before in chamonix and got myself more used to the height. If it's certainly made it easier, you can also achieve the same thing by climbing some of the smaller mountains first.
(A) M: You are used to climbing mountains in a group, and you never climb alone. (B) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (C) M: You are so brave that you successfully climbed the Mont Blanc on your own. (D) M: You climb mountains with a guide? No wonder you just took 2 days to reach the top.

Output: C


Input: Consider Input: F: Hello, Ben. You're getting ready for tomorrow's lessons, aren't you? ,M: Yes, but I'm a little bit nervous, because I have no idea how to get along with my classmates. ,F: I understand how you're feeling. Just take it easy. You'll make a lot of new friends very soon. ,M: Thank you. I am sure that I will. By the way, what time will the first lesson begin? ,F: At 8:00 o'clock, but before that we have 10 minutes to hand in homework and then 20 minutes for morning reading. ,M: So, we must get to school before 7:30, right? ,F: Right.
(A) M: Since the first lesson begins at 8:30, we really need to arrive at school before 7:20. (B) M: Well, just remember we can't be late for the first lesson begins at 7:50, so we must arrive at school before 7:30. (C) M: Alright, just get up on time, so we could arrive scholl before 7:30. (D) M: I didn’t hear you. Please could you tell me again?

Output: C


Input: Consider Input: F: Ladies and gentlemen, we are flying to San Francisco. ,M: Excuse me, Miss. ,F: Yes, sir. What's wrong? ,M: It's terrible. ,F: Are you feeling airsick? ,M: No. I've just realized I don't have my travel bag with me. ,F: Don't worry sir. Can you tell me what your bag is like? ,M: A small blue one made of leather with my name and address on it, a Brown basketball toy tide to the belt and my black wallet inside it. ,F: Can you remember where you last saw it? ,M: Let me see. Oh I must have left it by your airline counter at the airport when I registered my luggage.
(A) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (B) F: Don't worry sir. I'll contact the staff from the hotel to get your bag back. (C) F: So you didn't leave your name or address on the bag, did you? (D) F: You left your bag at the airport? Don't worry. I'll contact the workers there.


Output: D