import java.util.Scanner;

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

public class Main{
  public static void main(String[]args){
    Scanner sc=new Scanner(System.in);
    while(sc.hasNext()){
      int a=sc.nextInt(); //秒
      int b=sc.nextInt(); //枚数
      int t=sc.nextInt();
      int total;
      total=(int)(t+0.5)/a;
      System.out.println(total*b);
    }
  }
}