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.

Ex Input:
M: You don't look very happy. What seems to be the problem? ,F: I've got to write a long composition for my English class and I just can't come up with any idea and it's due tomorrow.
(A) M: I’m sorry, I don’t understand. Could you say it again? (B) M: You can go to the teacher's office. You can ask the teacher to help you with your French composition. (C) M: You don't look well. Don't worry. You still have many days to prepare for a long composition. (D) M: Maybe, Lily can help you with your long composition in French which is due to tomorrow.

Ex Output:
A


Ex Input:
M: Oxford Travel Agency, how may I help you? ,F: Hello, I'd like to ask about the package tour from Newcastle to London. ,M: Sure, what's your question? ,F: Your website says that the trip starts off every Thursday. Can I join the trip on July thirtieth? ,M: Sorry, I'm afraid it's full. How many people are going? ,F: My husband and our two children will go with me. ,M: 4 people then. There is still enough places on August sixth. Will that do? ,F: That's fine. Any discount for children under 12? ,M: Sorry, the price for children is the same, 700 pounds each person. It's already cheaper than other agencies.
(A) F: I'm going alone, so I just need to pay the $700, right? (B) F: 1,400 dollars per person? So it's $2,800 for mom and me. (C) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (D) F: Wow, I will have to pay $3,300 in total for this Oxford trip.

Ex Output:
C


Ex Input:
M: Miss Richardson, my daughter didn't sleep well last night. Will you give her some extra attention today? ,F: Don't worry, mister Cruise. All the kids will be taken good care of here.
(A) M: I'm so glad that my son can get some extra attention in this library. (B) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) M: Well, I don't think that my daughter needs some extra attention at this laundry. (D) M: Thank you so much. I'll recommend this nursery to my friends.

Ex Output:

D