<|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 [23, 19, 67, 42], create an equation that equals 69. You can use basic arithmetic operations (+, -, *, /) and each number can only be used once. Show your work in <think> </think> tags, following these instructions properly. Your answer should be provided in an exact format, for example the expected sequence is: <answer> (23 + 19) * 1 = 42 </answer>. First, explain your reasoning, then show your equation in the provided format. Do your best to solve this one!<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>