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 bCount = 0;

    for (int curentTime = a; curentTime <= t; curentTime += a ) {
      bCount += b;
    }
    System.out.println(bCount);
  }
} 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 bCount = 0;

    for (int curentTime = a; curentTime <= t; curentTime += a ) {
      bCount += b;
    }
    System.out.println(bCount);
  }
} 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 bCount = 0;

    for (int curentTime = a; curentTime <= t; curentTime += a ) {
      bCount += b;
    }
    System.out.println(bCount);
  } main {
    Scanner sc = new Scanner(System.in);

    int a = sc.nextInt();
    int b = sc.nextInt();
    int t = sc.nextInt();

    int bCount = 0;

    for (int curentTime = a; curentTime <= t; curentTime += a ) {
      bCount += b;
    }
    System.out.println(bCount);
  } 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 bCount = 0; bCount 0 for (int curentTime = a; curentTime <= t; curentTime += a ) {
      bCount += b;
    } int curentTime = a; int curentTime = a; curentTime a curentTime <= t curentTime t curentTime += a curentTime += a curentTime a {
      bCount += b;
    } {
      bCount += b;
    } bCount += b bCount b System.out.println(bCount) System.out.println System.out System System.out bCount 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 bCount = 0;

    for (int curentTime = a; curentTime <= t; curentTime += a ) {
      bCount += b;
    }
    System.out.println(bCount);
  }
} 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 bCount = 0;

    for (int curentTime = a; curentTime <= t; curentTime += a ) {
      bCount += b;
    }
    System.out.println(bCount);
  }
} 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 bCount = 0;

    for (int curentTime = a; curentTime <= t; curentTime += a ) {
      bCount += b;
    }
    System.out.println(bCount);
  }
}