<|im_start|>system
You are a helpful assistant. You first think about the reasoning process in the mind and then provide the user with the answer. You should try to truely solve the question by yourself without cheating.  <|im_end|>
<|im_start|>user
 In a labor skills competition, five students: A, B, C, D, and E, are ranked from first to fifth place. A and B inquire about their rankings. The response to A is: "Unfortunately, neither you nor B have won the championship." The response to B is: "Of course, you're not the last." Based on this response, how many different possible ranking combinations are there for the five people? (Answer with a number) Show your work in <think> </think> tags. And return the final answer in <answer> </answer> tags.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>
user
54
In a labor skills competition, five students: A, B, C, D, and E, are ranked from first to fifth place. A and B inquire about their rankings. The response to A is: "Unfortunately, neither you nor B have won the championship." The response to B is: "Of course, you're not the last." Based on this response, how many different possible ranking combinations are there for the five people? (Answer with a number)
test