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: I'm sorry, but I really must go now as it's getting dark. Thank you very much for the delicious meal. ,M: I'm glad you enjoy it. Thank you for coming. Please drop in when you have time.
(A) F: Thanks for your meal. It was delicious. (B) F: Sure. I am glad that you had a good time in our home. (C) F: I am afraid I did not quite catch what you were saying. Please repeat it. (D) F: Let's go home now. The restaurant is not so well.

Output: A


Input: Consider Input: M: Hello, reservation desk. How can I help you? ,F: I'd like to book a room. ,M: And what kind of room would you like ma'am? And we got single rooms, double rooms, standard rooms, sweets and Delux sweets. ,F: What's the rate for a standard room? ,M: $79 a night. ,F: I'd like a standard room. ,M: What date would you check in ma'am? ,F: December twenty-third, please. ,M: How long do you plan to stay? ,F: Four days.
(A) M: So, you mean you plan to stay three days and you will check out on December 23rd? (B) M: I am afraid I did not quite catch what you were saying. Please repeat it. (C) M: So, you plan to stay 4 days and you will check out on December 27th? (D) M: Oh, I see. You would like a single room and will check out on  December 27th.

Output: C


Input: Consider Input: F: What do you think of your new English teacher Mr White, Tom? ,M: Though many of my classmates considered him responsible and patient, I just think he's too strict with us.
(A) F: Since none of your classmates considered Mr. white patient, why do you find him patient? (B) F: So none of your classmates considered Mr. white responsible and patient, but you find him strict, right? (C) F: I am afraid I did not quite catch what you were saying. Please repeat it. (D) F: Although you find Mr. white responsible, none none of your classmates considered him responsible, right?


Output: C