How many digits are in the whole-number representation of $10^{100}-9^{100}$?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
How many digits are in the whole-number representation of $10^{100}-9^{100}$?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
100
How many digits are in the whole-number representation of $10^{100}-9^{100}$?
train