import java.util.*;
import java.io.*;

public class Main{
 public static void main(String[] args){
   Scanner s = new Scanner(System.in);
   int a = s.nextInt();
   int b = s.nextInt();
   int t = s.nextInt();
   
   int r = t/a;
   System.out.print(r*b);
 }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz