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:
F: Hi, Bob, do you know anything about boxing? ,M: Yes, it's a sport that does good to bodybuilding. ,F: Oh, I just think it is about fighting.
(A) M: Excuse me, could you repeat the question? (B) M: Although boxing isn't good for bodybuilding, how could you think it is about fighting? (C) M: Haha, a lot of people think boxing is fighting like you do. (D) M: Yes, as you said, boxing is a skill, but it's not good for bodybuilding at all.

Ex Output:
C


Ex Input:
M: I need to take some medicine. I think I got a cold. ,F: Well, you might want to drink some water first. I haven't seen you have anything to drink all day even while we were having lunch.
(A) M: You are right, I  should eat all this food first. (B) M: I only like apple juice, warm water is not suitable for me. (C) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) M: I won't take any medicine because it dose no good for my cold.

Ex Output:
C


Ex Input:
F: Why did you buy a second hand car for me? It is so disappointing. I thought you'd have bought me a new one. ,M: Don't be so angry my darling, I wanted to buy a new car for you, but I haven't got enough money at the moment. So when I got to the car market, I changed my mind. ,F: I feel so ashamed to drive such an old car. You know all my friends have good cars and beautiful houses. I really envy them. ,M: I am sorry for that. Please forgive me, I can promise you that if my business grows better for 3 more years, I'll surely make a fortune, then I'll buy you the most expensive car and a beautiful house with a nice, big garden and in the garden, there will be a fountain and a swimming pool.
(A) F: I feel very happy because I like it very much. (B) F: I am afraid I did not quite catch what you were saying. Please repeat it. (C) F: I'm angry on driving that car. (D) F: I really feel ashamed.

Ex Output:

D