import java.util.*;
 
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 sam = 0;
      
      for(int i=1;i<T+1;i++){
       if(A*i<=T){
         sam += B;
       }
      }

      System.out.print(sam);


    }
} import java.util.*; util.* java 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 sam = 0;
      
      for(int i=1;i<T+1;i++){
       if(A*i<=T){
         sam += B;
       }
      }

      System.out.print(sam);


    }
} 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 sam = 0;
      
      for(int i=1;i<T+1;i++){
       if(A*i<=T){
         sam += B;
       }
      }

      System.out.print(sam);


    } main {
      
        Scanner sc = new Scanner(System.in);
       int A = sc.nextInt();
        int B = sc.nextInt();
        int T = sc.nextInt();
        int sam = 0;
      
      for(int i=1;i<T+1;i++){
       if(A*i<=T){
         sam += B;
       }
      }

      System.out.print(sam);


    } 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 sam = 0; sam 0 for(int i=1;i<T+1;i++){
       if(A*i<=T){
         sam += B;
       }
      } int i=1; int i=1; i 1 i<T+1 i T+1 T 1 i++ i++ i {
       if(A*i<=T){
         sam += B;
       }
      } {
       if(A*i<=T){
         sam += B;
       }
      } if(A*i<=T){
         sam += B;
       } A*i<=T A*i A i T {
         sam += B;
       } sam += B sam B System.out.print(sam) System.out.print System.out System System.out sam String[] args args
import java.util.*;
 
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 sam = 0;
      
      for(int i=1;i<T+1;i++){
       if(A*i<=T){
         sam += B;
       }
      }

      System.out.print(sam);


    }
}