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: We've just moved into a new house. ,F: Really? Congratulations. ,M: Thank you. I think we want to buy a new television set. ,F: What kind of television do you want to buy? ,M: A color TV set, of course. But I'm not sure about the size. Maybe we should buy a big one. If we buy a small one, we might have to exchange it in a few years for a bigger one. That would be a waste of money. What's your opinion? ,F: In my opinion, I don't think it's necessary to buy a very big one.
(A) M: Why do you think we should get a small TV set but now a big one? (B) M: Yeah. We should buy a small TV set and change it in the future. (C) M: I agree with you. We should buy a big TV set instead of a small one. (D) M: Excuse me, could you repeat the question?

Output: A


Input: Consider Input: F: Hello. ,M: Susan? ,F: Yes, Peter is that you? ,M: Yes. ,F: Hi. How are you? ,M: As a matter of fact, I'm rather weak, that's why I'm calling you. I've had a stomachache and a terrible headache for 2 days. Now I think I need a doctor. ,F: Do you have a temperature? ,M: No, I don't. But I feel like I'm burning up. I think I need a doctor, but I'm not sure how to get one. ,F: Did you take out any medical insurance when you first came to university? ,M: Yes, I did. ,F: Good our university clinic has excellent doctors. I have a lunch break at noon and I'll drive over and pick you up. ,M: Oh, I feel so bad. Couldn't you get a doctor to come here? ,F: That's a little difficult. Go back to bed, I'll pick you up just afternoon.
(A) M: I'll wait for you to drive me to see the doctor. It's so kind of you. (B) M: Sure, I shall arrive soon. Wait for me and I'll drive you to the hospital. (C) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (D) M: OK, let walk there. I have a temperature, but I think I can manage it.

Output: A


Input: Consider Input: M: Mary, I'm going to London tomorrow. ,F: Oh, yes. Are you going by bus? ,M: It's the best way. There is a fast train but it's too expensive for me.
(A) F: So, you will travel to London by car because there is no fast train? (B) F: OK, I see. You mean there is a fast train and it's too cheap for you, so you will travel to London by train. (C) F: OK, I see. Since it's too expensive for you, you will travel to London by bus the day after tomorrow. (D) F: I’m sorry, I don’t understand. Could you say it again?


Output: D