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

public class Main{
public static void main(String[] args)throws IOException{
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String[] ABT = br.readLine().split(" ");
int A = Integer.parseInt(ABT[0]);
int B = Integer.parseInt(ABT[1]);
int T = Integer.parseInt(ABT[2]);
System.out.println((T/A)*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