A conversation between User and Assistant. The user asks a question, and the Assistant solves it. The assistant first thinks about the reasoning process in the mind and then provides the user with the answer. The reasoning process and answer are enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think> reasoning process here </think> <answer> RESULT_NUMBER </answer>. 
User: Give me the answer of the following equation: 917 * 71.
Assistant: Let me solve this step by step.
<think>
user