import java.util.*;
import java.math.*;

class Main {
  public static void main(String[] args){
  Scanner stdIn = new Scanner(System.in);
  int a = stdIn.nextInt();
  int b = stdIn.nextInt();
  int T = stdIn.nextInt();
  int count = 0;
  for(int i = a;i<T+0.5;i+=a) {
    count += b;
  }
  System.out.println(count);
}
}
/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