import java.lang.reflect.Array;
import java.util.*;

/**
 * Created by Santa.
 */
public class Main {

  static int N;
  static int K;
  static long Q;
  static int A;
  static int B;
  static long C;
  static double min = 9999999;
  static long ans = 0;

  public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);

    int A = scanner.nextInt();
    int B = scanner.nextInt();

    int T = scanner.nextInt();

    System.out.println((T / A) *  B);

  }
} import java.lang.reflect.Array; Array java.lang.reflect import java.util.*; util.* java public class Main {

  static int N;
  static int K;
  static long Q;
  static int A;
  static int B;
  static long C;
  static double min = 9999999;
  static long ans = 0;

  public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);

    int A = scanner.nextInt();
    int B = scanner.nextInt();

    int T = scanner.nextInt();

    System.out.println((T / A) *  B);

  }
} Main static int N; N static int K; K static long Q; Q static int A; A static int B; B static long C; C static double min = 9999999; min 9999999 static long ans = 0; ans 0 public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);

    int A = scanner.nextInt();
    int B = scanner.nextInt();

    int T = scanner.nextInt();

    System.out.println((T / A) *  B);

  } main {
    Scanner scanner = new Scanner(System.in);

    int A = scanner.nextInt();
    int B = scanner.nextInt();

    int T = scanner.nextInt();

    System.out.println((T / A) *  B);

  } Scanner scanner = new Scanner(System.in); scanner new Scanner(System.in) int A = scanner.nextInt(); A scanner.nextInt() scanner.nextInt scanner int B = scanner.nextInt(); B scanner.nextInt() scanner.nextInt scanner int T = scanner.nextInt(); T scanner.nextInt() scanner.nextInt scanner System.out.println((T / A) *  B) System.out.println System.out System System.out (T / A) *  B (T / A) T A B String[] args args public class Main {

  static int N;
  static int K;
  static long Q;
  static int A;
  static int B;
  static long C;
  static double min = 9999999;
  static long ans = 0;

  public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);

    int A = scanner.nextInt();
    int B = scanner.nextInt();

    int T = scanner.nextInt();

    System.out.println((T / A) *  B);

  }
} public class Main {

  static int N;
  static int K;
  static long Q;
  static int A;
  static int B;
  static long C;
  static double min = 9999999;
  static long ans = 0;

  public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);

    int A = scanner.nextInt();
    int B = scanner.nextInt();

    int T = scanner.nextInt();

    System.out.println((T / A) *  B);

  }
} Main
import java.lang.reflect.Array;
import java.util.*;

/**
 * Created by Santa.
 */
public class Main {

  static int N;
  static int K;
  static long Q;
  static int A;
  static int B;
  static long C;
  static double min = 9999999;
  static long ans = 0;

  public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);

    int A = scanner.nextInt();
    int B = scanner.nextInt();

    int T = scanner.nextInt();

    System.out.println((T / A) *  B);

  }
}
