Determine the tens digit of $17^{1993}$.
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Determine the tens digit of $17^{1993}$.
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
3
Determine the tens digit of $17^{1993}$.
train