import java.util.*;
public class Main {
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    
    int a = sc.nextInt();
    int b = sc.nextInt();
    int t = sc.nextInt();
    
    int minutes = (int) (t + 0.5) / a;
    int amounts = minutes * b;
    
    System.out.println(amounts);
  }
} import java.util.*; util.* java public class Main {
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    
    int a = sc.nextInt();
    int b = sc.nextInt();
    int t = sc.nextInt();
    
    int minutes = (int) (t + 0.5) / a;
    int amounts = minutes * b;
    
    System.out.println(amounts);
  }
} Main public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    
    int a = sc.nextInt();
    int b = sc.nextInt();
    int t = sc.nextInt();
    
    int minutes = (int) (t + 0.5) / a;
    int amounts = minutes * b;
    
    System.out.println(amounts);
  } main {
    Scanner sc = new Scanner(System.in);
    
    int a = sc.nextInt();
    int b = sc.nextInt();
    int t = sc.nextInt();
    
    int minutes = (int) (t + 0.5) / a;
    int amounts = minutes * b;
    
    System.out.println(amounts);
  } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int a = sc.nextInt(); a sc.nextInt() sc.nextInt sc int b = sc.nextInt(); b sc.nextInt() sc.nextInt sc int t = sc.nextInt(); t sc.nextInt() sc.nextInt sc int minutes = (int) (t + 0.5) / a; minutes (int) (t + 0.5) / a (int) (t + 0.5) t 0.5 a int amounts = minutes * b; amounts minutes * b minutes b System.out.println(amounts) System.out.println System.out System System.out amounts String[] args args public class Main {
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    
    int a = sc.nextInt();
    int b = sc.nextInt();
    int t = sc.nextInt();
    
    int minutes = (int) (t + 0.5) / a;
    int amounts = minutes * b;
    
    System.out.println(amounts);
  }
} public class Main {
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    
    int a = sc.nextInt();
    int b = sc.nextInt();
    int t = sc.nextInt();
    
    int minutes = (int) (t + 0.5) / a;
    int amounts = minutes * b;
    
    System.out.println(amounts);
  }
} Main
import java.util.*;
public class Main {
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    
    int a = sc.nextInt();
    int b = sc.nextInt();
    int t = sc.nextInt();
    
    int minutes = (int) (t + 0.5) / a;
    int amounts = minutes * b;
    
    System.out.println(amounts);
  }
}