import  java.util.*;

public class Main{
  public static void main(String[] args) {

    Scanner sc = new Scanner(System.in);

    int sec = sc.nextInt();
    int per_num = sc.nextInt();
    double max_sec = (double)sc.nextInt() + 0.5;

    int ans_num = 0;

    for (int i = sec; i < max_sec; i += sec) {
      ans_num += per_num;
    }

    System.out.println(ans_num);
  }
} import  java.util.*; util.* java public class Main{
  public static void main(String[] args) {

    Scanner sc = new Scanner(System.in);

    int sec = sc.nextInt();
    int per_num = sc.nextInt();
    double max_sec = (double)sc.nextInt() + 0.5;

    int ans_num = 0;

    for (int i = sec; i < max_sec; i += sec) {
      ans_num += per_num;
    }

    System.out.println(ans_num);
  }
} Main public static void main(String[] args) {

    Scanner sc = new Scanner(System.in);

    int sec = sc.nextInt();
    int per_num = sc.nextInt();
    double max_sec = (double)sc.nextInt() + 0.5;

    int ans_num = 0;

    for (int i = sec; i < max_sec; i += sec) {
      ans_num += per_num;
    }

    System.out.println(ans_num);
  } main {

    Scanner sc = new Scanner(System.in);

    int sec = sc.nextInt();
    int per_num = sc.nextInt();
    double max_sec = (double)sc.nextInt() + 0.5;

    int ans_num = 0;

    for (int i = sec; i < max_sec; i += sec) {
      ans_num += per_num;
    }

    System.out.println(ans_num);
  } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int sec = sc.nextInt(); sec sc.nextInt() sc.nextInt sc int per_num = sc.nextInt(); per_num sc.nextInt() sc.nextInt sc double max_sec = (double)sc.nextInt() + 0.5; max_sec (double)sc.nextInt() + 0.5 (double)sc.nextInt() sc.nextInt sc 0.5 int ans_num = 0; ans_num 0 for (int i = sec; i < max_sec; i += sec) {
      ans_num += per_num;
    } int i = sec; int i = sec; i sec i < max_sec i max_sec i += sec i += sec i sec {
      ans_num += per_num;
    } {
      ans_num += per_num;
    } ans_num += per_num ans_num per_num System.out.println(ans_num) System.out.println System.out System System.out ans_num String[] args args public class Main{
  public static void main(String[] args) {

    Scanner sc = new Scanner(System.in);

    int sec = sc.nextInt();
    int per_num = sc.nextInt();
    double max_sec = (double)sc.nextInt() + 0.5;

    int ans_num = 0;

    for (int i = sec; i < max_sec; i += sec) {
      ans_num += per_num;
    }

    System.out.println(ans_num);
  }
} public class Main{
  public static void main(String[] args) {

    Scanner sc = new Scanner(System.in);

    int sec = sc.nextInt();
    int per_num = sc.nextInt();
    double max_sec = (double)sc.nextInt() + 0.5;

    int ans_num = 0;

    for (int i = sec; i < max_sec; i += sec) {
      ans_num += per_num;
    }

    System.out.println(ans_num);
  }
} Main
import  java.util.*;

public class Main{
  public static void main(String[] args) {

    Scanner sc = new Scanner(System.in);

    int sec = sc.nextInt();
    int per_num = sc.nextInt();
    double max_sec = (double)sc.nextInt() + 0.5;

    int ans_num = 0;

    for (int i = sec; i < max_sec; i += sec) {
      ans_num += per_num;
    }

    System.out.println(ans_num);
  }
}
