<|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 [12, 17, 34, 49], create an equation that equals 42. You are allowed to use basic arithmetic operations (+, -, *, /) and no number can be used more than once. Show your work step-by-step in <think> </think> tags. And provide your final answer in <answer> </answer> to this question, for example, <answer> (12 + 17) * 1 = 29 </answer>.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>