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: So what do you want to do tomorrow? ,F: Well, let's look at this city guide here. Huh, here's something interesting. Why don't we first visit the Art Museum in the morning? ,M: OK. I like that idea. And where do you want to eat lunch?
(A) F: I don't know. Since we don't have a city guide, let's go to the park tomorrow morning. (B) F: I'm looking forward to going to the art museum tomorrow. (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: Although we don't have a city guide, it's a good plan to go to the art museum tomorrow morning.
Example Output: B

Example Input: M: Mary, I heard that Sam is forming his own band. What's the name of the band? ,F: Stay Away from the World. It will be a great success. Sam is very good at playing the guitar.
(A) M: Really? You mean Sam is not very good at playing the guitar and the name of Sam's band is Keep Away From The World. (B) M: You mean Sam is very good at playing the piano, and the name of Sam's band is Stay Away From The World? (C) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) M: So, it will not be a great success and  the name of Sam's band is Stay Away From The Words.
Example Output: C

Example Input: M: They should be a great show. Let's go in. ,F: Sure. Say, did you bring my book? ,M: Oh, I completely forgot it. ,F: You forgot? But you promised. I needed to study for the test. Oh, I knew I never should have lent it to you. ,M: Calm down, Melber. After the show, we can drive by my house and pick it up.
(A) F: I am afraid I did not quite catch what you were saying. Please repeat it. (B) F: I think so. Though I don't need it as the test is over, I promised to give it away. (C) F: We must do so. It won't be so troublesome if you remembered to take my book. (D) F: I know it's my fault that I forgot to bring your book, darling. Please calm down.
Example Output:
C