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: F: Eddie, you've got to come over and see my parrot. It's learning so many words now. ,M: Really? Last time I saw him all he could say was something that sounded like hello. ,F: Well, now, he can a sing a song too. ,M: Which song did you teach him? ,F: Calorie. You know that popular song by a group of girls right? Actually I didn't teach Goby the words. I was dancing to the song on the radio and he just picked it up. ,M: That's a pretty smart bird. I'll come over after school today. Let's take a video of him and put it on line.
(A) F: I’m sorry, I don’t understand. Could you say it again? (B) F: I will send you the link, so you can watch the video online after school today. (C) F: Come to my house after school, I will take videos of you. (D) F: My bird would be waiting for you to teach him more words after school today.

Output: A


Input: Consider Input: F: Why did you come to school by bike today? Is there anything wrong with your father's car? ,M: No, I just want to do what I can to protect the environment. ,F: That's a wonderful idea. I'll stop taking my father's car, too. ,M: That's great.
(A) F: Although your father's car broke down, we are students and this is what we should do. (B) F: As students, this is what we should do. (C) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (D) F: Since our son's car broke down, we should fix it as parents.

Output: B


Input: Consider Input: F: This is beautiful. Are we setting up camp here or are we going to follow the trail down to the river? ,M: Let's rest here for a bit. I told the others to meet us here, so we could take advantage of the view. But we should go down to the river to put up the tents. ,F: How did you find out about this place? It seems pretty far away from towns. ,M: My dad used to live near here. When I was young, my uncle took my brother and me to his cabin and we used to fish there.
(A) F: Your father must be an explorer to introduce this location to you. (B) F: I am afraid I did not quite catch what you were saying. Please repeat it. (C) F: It is amazing that your uncle found this place and introduced it to you. (D) F: Your brother was so brave to find this far place and introduce it to you.


Output: C