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: Sunshine Hotel. Good morning, Barbara speaking. ,M: Hello. I'd like to make a booking please. I'm on a business trip, so I need a single room. ,F: OK, your name please. ,M: John Griffin. That's JOHNGRIFFIN. ,F: OK, I've got that down. Wait a minute. We already have your name. You've been here before, haven't you? Or it must be someone with the same name. ,M: I've stayed with you twice before.
(A) F: No wonder we have your name. Thanks for choosing our hotel again. (B) F: Oh, you used to work at this hotel? Glad to serve you this time. (C) F: Your boss has booked a room for you, Sam, so we have your name. (D) F: I didn’t hear you. Please could you tell me again?

Output: A


Input: Consider Input: M: Hi, Maria, what are you up to? ,F: I'm just trying to plan my trip to Southeast Asia. ,M: Where are you planning to go? ,F: Well, I'm going to start by flying to Hong Kong. I have a friend there, who I haven't seen for a long time. Then I'll fly to Vietnam and take a bus down to Ho Chi Minh City. ,M: And then where will you go? ,F: Well, from there, I'll take the boat up River to Seam Reap, and see the famous temples. From there, I'll fly to Bangkok and try to get to the Chatuchak Market. I hear it's really great for shopping.
(A) M: Wow, I always think that taking boat up river to Seam Ream is quite romantic. (B) M: I am afraid I did not quite catch what you were saying. Please repeat it. (C) M: So, you'll go to the airport after you visit the famous ample, then fly to Seam Reap. (D) M: Why you chose boat to Hong Kong? There are many other ways to go there.

Output: A


Input: Consider Input: M: Our backyard is such a waste to be used as a storage place. I was thinking of turning it into a garden. What do you think about that? ,F: How about a swimming pool? I do enjoy swimming in summer.
(A) M: Really? You do enjoy swimming in winter? But now the backyard is being used as a garden and I think we can turn it into a pool. (B) M: I’m sorry, I don’t understand. Could you say it again? (C) M: OK, I see. You want to turn it into a pool although you do not enjoy swimming in summer. Now the backyard is being used as a storage place. (D) M: OK, I see. You want to turn it into a pool. Now the backyard is being used as a storage place.


Output: D