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: Did you have a busy week? ,M: Uhm, well, no. I mean I didn't do a lot, but I bought a computer. ,F: You did? Thank goodness. Now you don't need to borrow mine. You had it for 2 weeks last time. ,M: Yeah, so sorry about that. I wrote my history paper on it. Thanks again by the way.
(A) F: It's OK. I know that you borrowed it for your history paper. (B) F: Excuse me, could you repeat the question? (C) F: Why was your last computer broken? Your borrowed mine for a month last time. (D) F: It's OK. I remembered you borrowed it for the computer class for a month last time.

Ex Output:
A


Ex Input:
F: How can you be shouting at your grandpa? You can't be so rude! ,M: No, I don't want to be rude to him, but I had to shout so that he could hear me. My grandpa has something wrong with his ears. He doesn't hear well. ,F: I'm sorry. I misunderstood you. Your grandpa looks kind. ,M: Yes, he is kind to everybody in our small town. So we all respect him. ,F: He looks quite old now. He must be in his seventies, right? ,M: Yes, he is 75 years old this year. ,F: Though he looks so old, he is still in good health. ,M: Yes, of course, he gets up early every morning and does some exercise in our garden. That's why he is still in good health. ,F: How's your granny? Is she still in good health like your grandfather? ,M: She was 5 years younger than my grandfather, but she died of heart disease 3 years ago.
(A) F: Sorry to know your grandmother passed away this year at the age of 75. (B) F: Excuse me, could you repeat the question? (C) F: Oh, I'm sorry to hear that your grandmother died in a quite young age of 67. (D) F: I feel sorry. As she left at the age of 65 last year, you must miss her a lot.

Ex Output:
C


Ex Input:
F: Hush, did you hear something? It's from the study, maybe a rat or could be a thief. ,M: Relax, it's just Peters puppy dog. He asked me to take care of it for a few days.
(A) F: What? A thief in your house? (B) F: Oh, it's a dog. (C) F: Excuse me, could you repeat the question? (D) F: Oh, you just keep Tom's dog?

Ex Output:

B