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.

Input: Consider Input: M: Hi Miya, how are you? ,F: I'm very well, thanks. But I'm crazy busy these days. How are you? ,M: Fine, thanks. Why are you so busy? ,F: I have a Chinese test next week.
(A) M: So you are busy with your Chinese study for the commming exam this Friday. (B) M: Which level of the Chinese test you will have next week? (C) M: I didn’t hear you. Please could you tell me again? (D) M: Why do you want to go to the cafe? You are so free these days.

Output: B


Input: Consider 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.

Output: C


Input: Consider Input: F: How much is this piano, please? ,M: $1000. ,F: My god! That's a fortune! ,M: But you must realize that this is the most famous brand. ,F: But it's too dear for me. ,M: That's the best piano hit our store. ,F: I just want to get one for my daughter to learn how to play the piano. ,M: Then how about this one made in New York? It's priced at only $620. ,F: I hope its quality is guaranteed. ,M: Oh, yes, madam. As ours is a well known store, our goods are always dependable. ,F: Can you make it any cheaper? It's the first time that I've visited your store. ,M: For the first time, I'll make it an even figure $600. ,F: Thank you. By the way, can you have it delivered? ,M: Yes, of course, madam. We will deliver it free of charge.
(A) F: I didn’t hear you. Please could you tell me again? (B) F: Your store is not well-known, but I still feel it is worthy to spend $1000 in your store to buy a piano for my daughter. (C) F: Thank you for delivering the piano for free. Your service is very good even though your store is not well known. (D) F: Oh, your are so considerate to deliver the piano for free. I'm sure I will come back if my daughter need a new one.


Output: D