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: Good afternoon, sir. Can I help you? ,M: Yes, we need a room for the night. Have you got any rooms available? ,F: Yes. What do you like a single room or a double room? ,M: A double room. ,F: How many nights would you like to stay? ,M: We're only staying overnight. We'll check out tomorrow morning.How much is it? ,F: It's $68 per night.
(A) M: As I'll stay for two nights, it's $136 in total. (B) M: Then I need to pay $68 for the single room. (C) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) M: So, $204 a night for my single room. Alright.

Output: C


Input: Consider Input: F: Is that you, Tom? Long time no see. What have you been doing all these years? ,M: Hi Lucy. I haven't seen you in a million years. I actually worked abroad for a few months and I've just returned from Canada. How are things with you? ,F: Everything is fine except that we have been missing you. ,M: We really need to get together sometime.
(A) F: How many years have you worked abroad? (B) F: Definitely! Let's make an appointment. (C) F: I’m sorry, I don’t understand. Could you say it again? (D) F: Definitely! Let's make an appointment after I return from Canada.

Output: B


Input: Consider Input: F: What's your schedule like after school? ,M: I usually go to the gym on Thursdays and Saturdays. And on Wednesdays, I take guitar lessons in the evening at a music school.
(A) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (B) F: It's ok you spend every Wednesday night learning guitar, but you should complete your homework. (C) F: You put guitar lessons and gym exercise all on Wednesdays. The schedule would be tight. (D) F: Your guitar lessons are on Saturdays. Busy weekends.


Output: B