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: How can you be shouting at your grandpa? You can't be so rude! ,M: No, I don't want to be rude to him, but I had to shout so that he could hear me. My grandpa has something wrong with his ears. He doesn't hear well. ,F: I'm sorry. I misunderstood you. Your grandpa looks kind. ,M: Yes, he is kind to everybody in our small town. So we all respect him. ,F: He looks quite old now. He must be in his seventies, right? ,M: Yes, he is 75 years old this year. ,F: Though he looks so old, he is still in good health. ,M: Yes, of course, he gets up early every morning and does some exercise in our garden. That's why he is still in good health. ,F: How's your granny? Is she still in good health like your grandfather? ,M: She was 5 years younger than my grandfather, but she died of heart disease 3 years ago.
(A) F: Sorry to know your grandmother passed away this year at the age of 75. (B) F: Excuse me, could you repeat the question? (C) F: Oh, I'm sorry to hear that your grandmother died in a quite young age of 67. (D) F: I feel sorry. As she left at the age of 65 last year, you must miss her a lot.

Output: C


Input: Consider Input: F: Do you take long vacations at New Year? ,M: Yes, we do. We love travelling abroad around New Year. We saw the Pyramids last year. ,F: So where are you going for your vacation this year? ,M: We haven't decided yet. My son wants to go to Spain and my daughter wants to go to France, but my wife and I want to go to China. ,F: So why do you want to go to China? ,M: We want to see pandas in Sichuan. So do you like traveling abroad? ,F: Me? Well, it cost too much to take a trip abroad. I can't really afford such a trip. ,M: Well, you've just worked for a few months after all. ,F: Yes. So how long have you worked here? ,M: For over 10 years.
(A) F: As your friend I have to say, you will get used to your new work soon since you've only been working for a month. (B) F: Wow, you are so much experienced that I do. I really have a lot to learn from you! (C) F: I am afraid I did not quite catch what you were saying. Please repeat it. (D) F: Really? You do not look like someone who has been working here for 5 years.


Output: B