Compute $\lfloor \sqrt{n^2 - 10n + 29} \rfloor$ when $n = 19941994.$
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Compute $\lfloor \sqrt{n^2 - 10n + 29} \rfloor$ when $n = 19941994.$
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
19941989
Compute $\lfloor \sqrt{n^2 - 10n + 29} \rfloor$ when $n = 19941994.$
train