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: Can I have my bill, please? ,F: Yes, one moment, please. ,M: Do you take credit cards? ,F: Sorry, we don't accept checks, either. You have to pay in cash.
(A) M: OK. I'll pay by credit card. (B) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (C) M: Fine. I will pay by cash. (D) M: You don't accept cash? How about credit card?

Output: C


Input: Consider Input: ;,F: Amelia, what in particular do you have to do as a wedding planner? M;,F: I make most of the big decisions with the exception of more personal ones, such as what the bride will wear or who will be invited. I also booked the venue and the photographer. M;,F: So, do people ask you to organize their weddings to save money? M;,F: Well, I reduce some of the costs. But they have to pay my fee, so it works out about the same. In most cases, they are simply too busy to do it without assistance. M;,F: Tell me, what made you want to become a wedding planner? M;,F: In my case, it was after I'd been doing some voluntary work for a non-profit organization. Others come into wedding planning through different routes, such as restaurant management or providing meals for open air events. M;,F: So how could someone find work in this type of business? M;,F: Well, some companies offer courses, or you can provide written references from past clients. But in my case, people were impressed by shot of beautiful weddings planned and run by me.
(A) M: So, people were impressed by shot of beautiful weddings and you just attracted customers by presenting beautiful pictures? (B) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) M: Really? You mean I can provide written references from new clients but you attracted customers by presenting beautiful pictures? (D) M: So, people were not impressed by shot of beautiful weddings and you attracted customers by showing them written references?

Output: A


Input: Consider Input: M: So, to start with, I want to talk about a very successful invention, the bicycle. Why? Do you know what the main advantages of bikes are? ,F: They don't cost much? ,M: Yes, and they're not complicated. ,F: They're easy to use. Yeah? ,M: Not easy when you're going uphill. Let's say simple. ,F: OK. Yeah. They're cheap to run. They don't often breakdown. They're safe.
(A) M: Easy to use but they are expensive. (B) M: I disagree, motorcycle is simple to use rather than bicycle. (C) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (D) M: Cheap to run but they are not simple to operate.


Output: C