import java.util.Arrays;
import java.util.*;
public class Main{
  public static void main(String args[]){
    Scanner sc = new Scanner(System.in);
      double a = sc.nextDouble();
      double b = sc.nextDouble();
      double t = sc.nextDouble();
      double time = t+0.5;
      double cou = Math.floor(t/a);
      System.out.println((int)b*(int)cou); 
  }
}
 import java.util.Arrays; Arrays java.util import java.util.*; util.* java public class Main{
  public static void main(String args[]){
    Scanner sc = new Scanner(System.in);
      double a = sc.nextDouble();
      double b = sc.nextDouble();
      double t = sc.nextDouble();
      double time = t+0.5;
      double cou = Math.floor(t/a);
      System.out.println((int)b*(int)cou); 
  }
} Main public static void main(String args[]){
    Scanner sc = new Scanner(System.in);
      double a = sc.nextDouble();
      double b = sc.nextDouble();
      double t = sc.nextDouble();
      double time = t+0.5;
      double cou = Math.floor(t/a);
      System.out.println((int)b*(int)cou); 
  } main {
    Scanner sc = new Scanner(System.in);
      double a = sc.nextDouble();
      double b = sc.nextDouble();
      double t = sc.nextDouble();
      double time = t+0.5;
      double cou = Math.floor(t/a);
      System.out.println((int)b*(int)cou); 
  } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) double a = sc.nextDouble(); a sc.nextDouble() sc.nextDouble sc double b = sc.nextDouble(); b sc.nextDouble() sc.nextDouble sc double t = sc.nextDouble(); t sc.nextDouble() sc.nextDouble sc double time = t+0.5; time t+0.5 t 0.5 double cou = Math.floor(t/a); cou Math.floor(t/a) Math.floor Math t/a t a System.out.println((int)b*(int)cou) System.out.println System.out System System.out (int)b*(int)cou (int)b (int)cou String args[] args public class Main{
  public static void main(String args[]){
    Scanner sc = new Scanner(System.in);
      double a = sc.nextDouble();
      double b = sc.nextDouble();
      double t = sc.nextDouble();
      double time = t+0.5;
      double cou = Math.floor(t/a);
      System.out.println((int)b*(int)cou); 
  }
} public class Main{
  public static void main(String args[]){
    Scanner sc = new Scanner(System.in);
      double a = sc.nextDouble();
      double b = sc.nextDouble();
      double t = sc.nextDouble();
      double time = t+0.5;
      double cou = Math.floor(t/a);
      System.out.println((int)b*(int)cou); 
  }
} Main
import java.util.Arrays;
import java.util.*;
public class Main{
  public static void main(String args[]){
    Scanner sc = new Scanner(System.in);
      double a = sc.nextDouble();
      double b = sc.nextDouble();
      double t = sc.nextDouble();
      double time = t+0.5;
      double cou = Math.floor(t/a);
      System.out.println((int)b*(int)cou); 
  }
}

