In writing the integers from 10 through 99 inclusive, how many times is the digit 6 written?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
In writing the integers from 10 through 99 inclusive, how many times is the digit 6 written?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
19
In writing the integers from 10 through 99 inclusive, how many times is the digit 6 written?
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