import java.util.*;

class Main {
  public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    String[] array = scanner.nextLine().split(" ");
    int A = Integer.parseInt(array[0]);
    int B = Integer.parseInt(array[1]);
    int T = Integer.parseInt(array[2]);
    
   	int now = A;
    int num = 0;
    while(now <= T) {
      now += A;
      num += B;
    }
    System.out.println(num);
  }
} import java.util.*; util.* java class Main {
  public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    String[] array = scanner.nextLine().split(" ");
    int A = Integer.parseInt(array[0]);
    int B = Integer.parseInt(array[1]);
    int T = Integer.parseInt(array[2]);
    
   	int now = A;
    int num = 0;
    while(now <= T) {
      now += A;
      num += B;
    }
    System.out.println(num);
  }
} Main public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    String[] array = scanner.nextLine().split(" ");
    int A = Integer.parseInt(array[0]);
    int B = Integer.parseInt(array[1]);
    int T = Integer.parseInt(array[2]);
    
   	int now = A;
    int num = 0;
    while(now <= T) {
      now += A;
      num += B;
    }
    System.out.println(num);
  } main {
    Scanner scanner = new Scanner(System.in);
    String[] array = scanner.nextLine().split(" ");
    int A = Integer.parseInt(array[0]);
    int B = Integer.parseInt(array[1]);
    int T = Integer.parseInt(array[2]);
    
   	int now = A;
    int num = 0;
    while(now <= T) {
      now += A;
      num += B;
    }
    System.out.println(num);
  } Scanner scanner = new Scanner(System.in); scanner new Scanner(System.in) String[] array = scanner.nextLine().split(" "); array scanner.nextLine().split(" ") scanner.nextLine().split scanner.nextLine() scanner.nextLine scanner " " int A = Integer.parseInt(array[0]); A Integer.parseInt(array[0]) Integer.parseInt Integer array[0] array 0 int B = Integer.parseInt(array[1]); B Integer.parseInt(array[1]) Integer.parseInt Integer array[1] array 1 int T = Integer.parseInt(array[2]); T Integer.parseInt(array[2]) Integer.parseInt Integer array[2] array 2 int now = A; now A int num = 0; num 0 while(now <= T) {
      now += A;
      num += B;
    } now <= T now T {
      now += A;
      num += B;
    } now += A now A num += B num B System.out.println(num) System.out.println System.out System System.out num String[] args args
import java.util.*;

class Main {
  public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    String[] array = scanner.nextLine().split(" ");
    int A = Integer.parseInt(array[0]);
    int B = Integer.parseInt(array[1]);
    int T = Integer.parseInt(array[2]);
    
   	int now = A;
    int num = 0;
    while(now <= T) {
      now += A;
      num += B;
    }
    System.out.println(num);
  }
}