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: How much is the cap? ,F: 8 yuan for 1, 14 yuan for 2, and 18 yuan for 3. ,M: Then I'll take 3.
(A) F: 8 yuan, please. (B) F: OK. These four caps cost 18 yuan. (C) F: 14 yuan, please. (D) F: I am afraid I did not quite catch what you were saying. Please repeat it.

Output: D


Input: Consider Input: M: Can I have my bill, please? ,F: Yes, one moment, please. ,M: Do you take credit cards? ,F: Sorry, we don't accept checks, either. You have to pay in cash.
(A) M: OK. I'll pay by credit card. (B) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (C) M: Fine. I will pay by cash. (D) M: You don't accept cash? How about credit card?

Output: C


Input: Consider Input: M: Hey, Lucy, I want to go swimming this weekend. Do you want to come with me? ,F: Jack and I plan to go for a hike in the mountains.
(A) M: Ok, then we can go swimming together this week. (B) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) M: Yeah, hiking is a good choice. (D) M: It's a coincidence that I'm going hiking this week, so we can go together.


Output: C