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: Ella, what languages do you speak? ,F: As you know Korean is my first language. I also speak English and Chinese. How about you? What languages do you speak? ,M: English, German and French. While I was studying in Europe, I used French in German all the time. Now, my French is not so good but I do keep my German up.
(A) F: My mother tongue is Korean, but I can't speak any other language. (B) F: I’m sorry, I don’t understand. Could you say it again? (C) F: We can both speak English. English is my mother tongue. (D) F: My native language is Chinese, but I can't speak English.

Output: A


Input: Consider Input: M: So, Gilda. I'm sure we both have to deal with homesickness, because we're so far away from our own country. ,F: Yes, it's very difficult. In special seasons like Christmas or during the Holy Week, it is something that we celebrate a lot and I really feel homesick. ,M: How do you deal with homesickness? ,F: When I feel homesick, I never stay at home alone. One thing I do is that I always try to go for things in the neighborhood. So what do the locals do? Is there anything interesting? And it's a sort of adventure because you're doing something new, so you're kind of replacing something that you used to do by something new. So, in a way, it's nice dealing with homesickness. ,M: Yeah. ,F: What about you? ,M: Well, that's what I was going to say. You said replacing and I also focus myself on other activities, such as playing golf, swimming and watching TV. But what I like best is to go hiking with the friends I've made and we talk a lot.
(A) F: Cool. So swimming is your favorite activity. (B) F: Cool. So go hiking with your friends is your favorite activity. (C) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (D) F: Cool. So go hiking with your family is your favorite activity.

Output: B


Input: Consider Input: F: Have you been to the Water Sports Center? ,M: Oh, yes, it's great. There are 2 pools, one for diving and the other for swimming. You can have sailing lessons, too. ,F: I was hoping to take water skiing lessons, but it won't start this year.
(A) M: I don't realize you want to take waterskiing lessons. (B) M: So the waterskiing lessons you want to take starts this year, doesn't it? (C) M: I’m sorry, I don’t understand. Could you say it again? (D) M: Although you want to take swimming lessons in the Water Sports Center, there is only one pool.


Output: A