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: Nice to see you, Mary! Come in, please! ,F: Thank you Tom, but I am afraid not now. I've come only to return the book borrowed from you. ,M: Wonderful. I've been waiting for you a long time and longing to know what you think of it. ,F: It is very interesting and I've learned a lot from it. ,M: Well, so it is with me.
(A) F: I'm here to ask you for help. (B) F: I am really sorry, I did not catch that. Would you slow down, please? (C) F: I'm here to invite you for dinner. (D) F: Now, here is the book to be returned.

Output: D


Input: Consider Input: F: Now, please tell me something about yourself. ,M: My name is Henry Smith. I left school for months ago. I got A's in nearly every subject. ,F: Then why didn't you go to college? ,M: I wanted to. But I couldn't afford the costs. My father lost his job half a year ago. My mother makes too little money. My younger brother and sister are still studying in high school. I must work to help support my family.
(A) F: I didn’t hear you. Please could you tell me again? (B) F: So there are 4 people in your family, right? (C) F: So there are 5 people in your family, and your brother and sister are still in middle school, right? (D) F: Wow, you have 6 people in your family.

Output: A


Input: Consider Input: M: I'm here with Margaret Seabrook, the CEO of creative toys. In today's show, we're going to discuss the hottest new toy of two thousand seventeen, the Super Spinner. Margaret, welcome. ,F: Thank you, Brian. It's great to be here. ,M: OK, so tell us about this new toy. ,F: Well. It's similar to a relaxation ball in its function, but it's useful for anyone who has problems focusing.
(A) M: I am afraid I did not quite catch what you were saying. Please repeat it. (B) M: So, you compare the toy to a medicine but it's not useful for anyone who has problems focusing? (C) M: So, it's the hottest new toy of one thousand seventeen and you compare the toy to a ball? (D) M: So, the toy is different to a relaxation ball in its function and you compare the toy to a hand?


Output: A