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: F: This is an interesting project, we have for psychology class. ,M: Interesting. It's going to be a lot of work.
(A) F: I know you find it so hard, but we have to do this. (B) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (C) F: I figured you' d find this chemistry project is difficult. (D) F: I can' t believe you think the math project is easy.

Output: A


Input: Consider Input: F: Is this Mister Brown's office? ,M: Yes, but he's gone out. Did you tell him beforehand about your coming? ,F: Yes, I found him yesterday and he told me to come here at 9:00 today, it's almost the time now. How soon will he be back? ,M: Well, maybe before 10:30. In fact, I'm waiting to see him too. When I arrived at about 8:00, only his secretary was here. She's gone to the copy shop to have a form copied.
(A) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (B) F: What? You mean you saw his secretary went out to apply to study abroad at about 9:00? (C) F: I wonder why she went out to copy at 9:00. Don't they have a copying machine in their office? (D) F: But why did she have to go out to contact Mr. Brown? He is in his office for the whole morning.

Output: A


Input: Consider Input: F: I thought you were going to see your mother on fourth Street last weekend. ,M: I intended to. But she called me to say that it was not convenient, so I stayed at home.
(A) F: So how did you feel when you stayed with your mother at home last weekend? (B) F: Really? Did you go shopping with your mom on 4th street all day long last weekend? (C) F: I didn’t hear you. Please could you tell me again? (D) F: Oh, it's a pity that you stayed at home alone last weekend.


Output: D