<|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 [4, 49, 81, 93], create an equation that equals 163. You can use basic arithmetic operations (+, -, *, /) and each number can only be used once. Try using the smaller numbers first to see if you can make the easier numbers combine to form the target. Showing your work in <think> </think> tags. And return the final equation and answer in <answer> </answer> tags, for example <answer> 49 + 81 = 130, then 130 + 4 + 1 = 135, then 135 + 83 = 163 </answer>.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>