Description

What is the $n$-th digit after the decimal point when the fraction $\frac{a}{b}$ is converted to a decimal number?

Input Format

Three positive integers $a$, $b$, and $n$, separated by spaces. $0 < a < b < 100$, $1 \le n \le 10000$.

Output Format

A single digit.

Sample

1 2 1

5