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: Oh, there is nothing better than an ice cold glass of ice water on a hot day. ,M: You know, cold water always gives me stomachaches. ,F: Really? I've never had that problem. I've been drinking ice water since I was little. ,M: When I was a small boy, my grandmother never let my mom give me anything other than warm water. ,F: Even in the summer? ,M: Yes, every once in a while my dad would take me to get some ice cream, but my grandmother was never happy about that. I think it was the sugar that she didn't like.
(A) F: Your grandmother tell you to drink only cold water on hot days? (B) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (C) F: Drinking warm water in summer sounds healthy, but I can't do it. (D) F: You only have something other than water in summer, like ice cream.

Ex Output:
C


Ex Input:
M: Does this bus really go to the mall? ,F: It goes all the way there. ,M: Are you sure? ,F: I know it does. I take this bus a lot.
(A) M: You must take this bus a lot. (B) M: You are still not similar with this bus even if you leave near the city. (C) M: You are still not similar with this bus even if you are an experienced driver. (D) M: I didn’t hear you. Please could you tell me again?

Ex Output:
A


Ex Input:
M: I can't stand this heat. I can't get my attention to studying for the midterm exam. I guess I'll have to go to the library this afternoon.
(A) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (B) F: It is a good idea to study in the library. The dormitory is cold. (C) F: Ok, you can study in the dormitory tomorrow. I will go out. (D) F: I'm afraid that it cost a lot to study in the comfortable apartment.

Ex Output:

A