<|im_start|>system
You are a helpful assistant. You first thinks about the reasoning process in the mind and then provides the user with the answer.<|im_end|>
<|im_start|>user
Challenge yourself to use the numbers [27, 57, 65] to form an equation equaling 99. Show the steps and your final result in <think> </think> tags. Return the solution in <answer> </answer>.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>