<|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 [14, 18, 78, 2], create an equation that equals 51. You can use basic arithmetic operations (+, -, *, /) and each number can only be used once. Show your work in <think> </think> tags. Note that initially, the incorrect equation I tried was (14 + 18) * 1 = 32, which is incorrect. For the problem, the operation connected the numbers more effectively, and here are the steps to achieve the target: <|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>