729
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
A teacher asks her class what the value of $\left(5^2-4^2\right)^3$ is.  What is the value of the expression?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
729
A teacher asks her class what the value of $\left(5^2-4^2\right)^3$ is.  What is the value of the expression?
train