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: What should we bring to the picnic on Sunday? ,F: Tom and Mary usually take plenty of drinks and fruit, so let's bring some desserts instead.
(A) M: Fine. Let's bring some desserts to the picnic. (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. Let's bring some drinks to the picnic. (D) M: Fine. Let's bring some desserts to the theater.

Output: A


Input: Consider Input: F: Gosh, we've been waiting for ages? What's the matter? ,M: Who knows? It always leaves on time more or less. But in the middle of winter, you have to expect the delay here sometimes. In fact, the trains also sometimes get delayed by snow on the lines or the planes by fog on the runway. Actually, it's probably rain that's holding up things for us right now.
(A) F: Yes, the rain may be the reason that the trains get delayed. (B) F: I am afraid I did not quite catch what you were saying. Please repeat it. (C) F: It's probably flog that's holding up things for us right now. (D) F: The weather forecast says the rain has stopped.

Output: A


Input: Consider Input: F: I'm going to sleep after turning off the lights. ,M: I'm going to take a walk first.
(A) F: Although you don't go for a walk, I'll go to bed after taking a walk. (B) F: But I prefer go to sleep once turning off the lights. (C) F: I am really sorry, I did not catch that. Would you slow down, please? (D) F: Since you're not going for a walk, let's go to bed before turning off the lights.


Output: B