Problems
Big accuracy
Big accuracy
The rational fraction m/n is given. Write it in the decimal notation with k digits after the decimal point.
Input data
Three numbers m, n, k are written in one line. 0 < m, n ≤ 100, 0 ≤ k ≤ 1000.
Output data
Print k digits after the decimal point of the given number.
Examples
Input example #1
1 2 3
Output example #1
0.500