<|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 [6, 77, 73, 20], create an equation that equals 178. After generating and showing your work in <think> </think> tags, return the final equation and answer in <answer> </answer> tags, for example <answer> (1 + 2) * 3 + 4 = 11 </answer>. Think about how different arithmetic operations can be combined to reach your target, ensuring each digit is used exactly once.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>