<|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 [1, 25, 49, 81], create an equation that equals 94. You can utilize the basic arithmetic operations (+, -, *, /) and each number should be used once. Show your work in <think> </think>. Your final answer should be provided in the following format: <answer> </answer>. Provide conditions where the solution methods used could fail. If your method reduces your initial numbers significantly early on, try a different order. Do not rearrange the numbers as long as you can satisfy the constraints.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>