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: 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: M: What did you buy at the market? ,F: I bought some special local products. ,M: You seem to have bought the whole market. ,F: Yes. I really wanted to do so. I love those handicrafts, especially the papercuts. ,M: Papercuts are all handmade. Let me see the papercuts you bought. Oh they're all animals. ,F: Aren't animals. The main content of Chinese paper cuts. ,M: Alright animals are the most common theme in paper cuts, but there are other themes. ,F: I will buy some tomorrow. ,M: Why do you want to buy so many?
(A) F: Because I want to buy some paper-cuts tomorrow and give them to my friends. (B) F: I’m sorry, I don’t understand. Could you say it again? (C) F: I want to learn to make paper-cuts tomorrow and give them to my friends. (D) F: I didn't buy anything from the market. Tomorrow I will send paper-cuts to my friends.

Output: A


Input: Consider Input: F: Hello, Bob. This is Nancy speaking. I'm so glad I've got hold of you at last. ,M: Were you trying to get in touch with me? If I'm not at home, you can usually reach me at my club here. ,F: That's good to know. Listen, Bob, I've got news for you. ,M: What is it? ,F: My sister Amy is coming back from the states. ,M: That's great. When is she coming back? ,F: Next weekend. ,M: Next weekend? OK. Let's get together tonight and plan a party for her.
(A) F: Yes, we can have dinner together and talk about my sister Mary then. (B) F: I didn’t hear you. Please could you tell me again? (C) F: It is true that we should meet and discuss about the pary for Amy. (D) F: Maybe we can go to a movie tonight since Amy will come back next month.


Output: C