<|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
 John spent 3 years of his life exploring the jungle. He then spent half as much time writing up notes about his travels. It took some time to write his book once he was done with the notes, and he spent 5 years on his book and exploring. How long did it take him to write his book? 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
2
John spent 3 years of his life exploring the jungle. He then spent half as much time writing up notes about his travels. It took some time to write his book once he was done with the notes, and he spent 5 years on his book and exploring. How long did it take him to write his book?
test