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.

Example Input: M: I have read Mark Twain's book, The Adventures of Tom Sawyer. It's quite interesting and adventurous. ,F: But this book I'm reading is kind of boring. It only tells you some facts about Mark Twain. ,M: Oh, tell me something about Mark Twain, please. ,F: Well, when Mark Twain was 4, his family moved to Hannibal, a port town on the Mississippi River that gave him the idea for writing the book, The Adventures of Tom Sawyer. ,M: Oh, really? Anything else? ,F: In eighteen fourty-seven, when Twain was 11 years old, his father died. The next year, he began to learn printing. When he was 18, he worked as a printer in New York City. ,M: What happened next? ,F: Then on a voyage to New Orleans, the steamboat pilot, Horace, inspired Twain to become a pilot. And Mark Twain really received his steamboat pilot license in eighteen fifty-nine, after 2 years of hard work.
(A) M: So, on the voyage to New Orleans, Mark Twain wanted to be a pilot but Hannibal gave Mark Twain the idea to write a book? (B) M: So, New Orleans gave Mark Twain the idea to write a book but when he was 18, he still worked as a printer in London? (C) M: So, as Mark Twain never received his steamboat pilot license, he finally became a writer and Hannibal gave him the idea to write a book? (D) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that?
Example Output: A

Example Input: M: What did you do last night? Did you work all night? ,F: I did do some work, but I watched a bit of TV, too. ,M: I watched a great football game on TV last night Did you watch it?
(A) F: No. Why did you work all night yesterday? (B) F: Did you like the story you read last night by Shakespeare? (C) F: So you watched a football game the day before yesterday? (D) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that?
Example Output: D

Example Input: F: Today we are going to discuss how to write better. ,M: Excuse me. ,F: Ah, Tom, you're late again. ,M: I'm sorry, Mrs Green. ,F: What's the excuse this time? ,M: I must have turned off my alarm clock and gone back to sleep again.
(A) F: So I am having a class when you come. (B) F: I’m sorry, I don’t understand. Could you say it again? (C) F: Although I am having a meeting when you come this time, this is your first time to be late. I forgive you. (D) F: I am correcting homework when you come. You've never been late.
Example Output:
A