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: Hi, there. I think I'm coming down with something. I need some medicine to get me through the next few days. ,F: Wow, you look terrible. What's going on? ,M: Well, my throat hurts. My nose has been running and I have a bad cough. It could just be cold, but I don't know for sure. ,F: You should take some cold medicine and get some rest. You don't look well. ,M: I have a very important job and I can't miss any work. So, give me something strong.
(A) F: I am afraid I did not quite catch what you were saying. Please repeat it. (B) F: Good to know that you'll take a sick leave as you look ill. (C) F: Are you sure you won't rest at home? You really look sick. (D) F: Your throat is perfectly fine? But you sounds unhealthy.

Ex Output:
C


Ex Input:
M: Next week I'm going to New York to sign a business contract. What would you suggest I see while I'm there? ,F: You should definitely see the UN Building and from there, you could walk over to Broadway and see a movie or drama. ,M: How about New York's universities? I'm especially interested in learning about their schools there and the courses they offer. ,F: Columbia University and New York University are two of the best schools in the city. I'm sure they offer excellent courses. ,M: Do you have a map of the city? ,F: Yes, I have one right here in fact. I can give you this one but I'd also suggest that you stop at the visitor's office near the train station. They will have good up-to-date maps and they can give you more tourist information about the city.
(A) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (B) M: OK, I will ask visitor's office for help as soon as I get lost. (C) M: OK, I will get a map on visitor's office. (D) M: I will take a map at the UN office directly.

Ex Output:
C


Ex Input:
F: What is so special about tomorrow? ,M: Tomorrow is October the twenty-forth, United Nations Day. ,F: Why is October the twenty-forth United Nations Day? ,M: That's the date in 1945, when the United Nations began.
(A) F: Since the day after tomorrow is October the twenty-forth, the United Nations is 52 years old in 2017. (B) F: Although tomorrow is not special at all, the United Nations is 72 years old in 2017. (C) F: So the United Nations is 72 years old in 2017. (D) F: Excuse me, could you repeat the question?

Ex Output:

C