import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int t = sc.nextInt();
        
        int biscuit = 0;
        
        for(int i = 1; i < t + 0.5; i++){
            if(i % a == 0){
                biscuit += b;
            }
        }
        
        System.out.println(biscuit);
        
    }
} import java.util.*; util.* java public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int t = sc.nextInt();
        
        int biscuit = 0;
        
        for(int i = 1; i < t + 0.5; i++){
            if(i % a == 0){
                biscuit += b;
            }
        }
        
        System.out.println(biscuit);
        
    }
} Main public static void main(String[] args) throws Exception {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int t = sc.nextInt();
        
        int biscuit = 0;
        
        for(int i = 1; i < t + 0.5; i++){
            if(i % a == 0){
                biscuit += b;
            }
        }
        
        System.out.println(biscuit);
        
    } main {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int t = sc.nextInt();
        
        int biscuit = 0;
        
        for(int i = 1; i < t + 0.5; i++){
            if(i % a == 0){
                biscuit += b;
            }
        }
        
        System.out.println(biscuit);
        
    } 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 biscuit = 0; biscuit 0 for(int i = 1; i < t + 0.5; i++){
            if(i % a == 0){
                biscuit += b;
            }
        } int i = 1; int i = 1; i 1 i < t + 0.5 i t + 0.5 t 0.5 i++ i++ i {
            if(i % a == 0){
                biscuit += b;
            }
        } {
            if(i % a == 0){
                biscuit += b;
            }
        } if(i % a == 0){
                biscuit += b;
            } i % a == 0 i % a i a 0 {
                biscuit += b;
            } biscuit += b biscuit b System.out.println(biscuit) System.out.println System.out System System.out biscuit String[] args args public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int t = sc.nextInt();
        
        int biscuit = 0;
        
        for(int i = 1; i < t + 0.5; i++){
            if(i % a == 0){
                biscuit += b;
            }
        }
        
        System.out.println(biscuit);
        
    }
} public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int t = sc.nextInt();
        
        int biscuit = 0;
        
        for(int i = 1; i < t + 0.5; i++){
            if(i % a == 0){
                biscuit += b;
            }
        }
        
        System.out.println(biscuit);
        
    }
} Main
import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int t = sc.nextInt();
        
        int biscuit = 0;
        
        for(int i = 1; i < t + 0.5; i++){
            if(i % a == 0){
                biscuit += b;
            }
        }
        
        System.out.println(biscuit);
        
    }
}
