
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main
{

  public static void main(String[] args) throws IOException
  {
    BufferedReader r = new BufferedReader(new InputStreamReader(System.in), 1);

    String s;
    String sl[];

    s = r.readLine();
    sl = s.split(" ");
    int a = Integer.parseInt(sl[0]);
    int b = Integer.parseInt(sl[1]);
    int t = Integer.parseInt(sl[2]);

    System.out.println(b * (t / a));


  }

}

/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