<|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
Using the numbers [3, -9, -41, 46], come up with an equation that results in 57. Remember to utilize each number only once and display your problem-solving process in <think> </think> tags. Present the final equation and your solution in <answer> </answer> tags, for example <answer> 3 + (-9) + (-41) * 46 = 57 </answer>.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>