#5511. CSES2431 数字查询
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CSES2431 数字查询
Digit Queries
Consider an infinite string that consists of all positive integers in increasing order: 12345678910111213141516171819202122232425... Your task is to process q queries of the form: what is the digit at position k in the string?
Input
The first input line has an integer q: the number of queries. After this, there are q lines that describe the queries. Each line has an integer k: a 1-indexed position in the string.
Output
For each query, print the corresponding digit.
Constraints
^{18}$
Example
Input
3
7
19
12
Output
7
4
1