<|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 [44, 11, 33, 31], reach the target number 72. Use basic arithmetic operations (+, -, *, /) to form the equation. Remember, each number should only be used once. Show your work in <think> </think> tags. Lastly, return the final equation and answer in <answer> </answer> tags, for example: <answer> (44 - 11) * 33 / 31 = 59.88 </answer>.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>