Output the $k$-th digit after the decimal point in the division of $a$ by $b$.
### Input
- A single line containing three integers $a, b, k$.
### Output
-Print a single digit that satisfies the condition.
### Constraints
- $1 \le a, b, k \le 10^5$.
### Sample test
```
22 7 5
```
Output:
```
5
```
