import java.util.Scanner;

class Main{
  public static void main(String[] args){
    Scanner scanner = new Scanner(System.in);
    int A = scanner.nextInt();
    int B = scanner.nextInt();
    int T = scanner.nextInt();
    
    
    int sumA = A;
    int sumB = 0;
    
    while(sumA <= T){
    
      sumA += A;
      sumB += B;
    }
    
    System.out.println(sumB);
    
  }
} import java.util.Scanner; Scanner java.util class Main{
  public static void main(String[] args){
    Scanner scanner = new Scanner(System.in);
    int A = scanner.nextInt();
    int B = scanner.nextInt();
    int T = scanner.nextInt();
    
    
    int sumA = A;
    int sumB = 0;
    
    while(sumA <= T){
    
      sumA += A;
      sumB += B;
    }
    
    System.out.println(sumB);
    
  }
} Main public static void main(String[] args){
    Scanner scanner = new Scanner(System.in);
    int A = scanner.nextInt();
    int B = scanner.nextInt();
    int T = scanner.nextInt();
    
    
    int sumA = A;
    int sumB = 0;
    
    while(sumA <= T){
    
      sumA += A;
      sumB += B;
    }
    
    System.out.println(sumB);
    
  } main {
    Scanner scanner = new Scanner(System.in);
    int A = scanner.nextInt();
    int B = scanner.nextInt();
    int T = scanner.nextInt();
    
    
    int sumA = A;
    int sumB = 0;
    
    while(sumA <= T){
    
      sumA += A;
      sumB += B;
    }
    
    System.out.println(sumB);
    
  } 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 int sumA = A; sumA A int sumB = 0; sumB 0 while(sumA <= T){
    
      sumA += A;
      sumB += B;
    } sumA <= T sumA T {
    
      sumA += A;
      sumB += B;
    } sumA += A sumA A sumB += B sumB B System.out.println(sumB) System.out.println System.out System System.out sumB String[] args args
import java.util.Scanner;

class Main{
  public static void main(String[] args){
    Scanner scanner = new Scanner(System.in);
    int A = scanner.nextInt();
    int B = scanner.nextInt();
    int T = scanner.nextInt();
    
    
    int sumA = A;
    int sumB = 0;
    
    while(sumA <= T){
    
      sumA += A;
      sumB += B;
    }
    
    System.out.println(sumB);
    
  }
}
