import java.util.*;
public 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 kotae = 0;
        for(int i=1; i<T+1; i++){
            if(i%A==0){
                kotae = kotae + B;
            } else{
                kotae = kotae;
            }
        }
        System.out.println(kotae);
    }
} import java.util.*; util.* java public 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 kotae = 0;
        for(int i=1; i<T+1; i++){
            if(i%A==0){
                kotae = kotae + B;
            } else{
                kotae = kotae;
            }
        }
        System.out.println(kotae);
    }
} 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 kotae = 0;
        for(int i=1; i<T+1; i++){
            if(i%A==0){
                kotae = kotae + B;
            } else{
                kotae = kotae;
            }
        }
        System.out.println(kotae);
    } main {
        Scanner sc = new Scanner(System.in);
        int A = sc.nextInt();
        int B = sc.nextInt();
        int T = sc.nextInt();
        int kotae = 0;
        for(int i=1; i<T+1; i++){
            if(i%A==0){
                kotae = kotae + B;
            } else{
                kotae = kotae;
            }
        }
        System.out.println(kotae);
    } 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 kotae = 0; kotae 0 for(int i=1; i<T+1; i++){
            if(i%A==0){
                kotae = kotae + B;
            } else{
                kotae = kotae;
            }
        } int i=1; int i=1; i 1 i<T+1 i T+1 T 1 i++ i++ i {
            if(i%A==0){
                kotae = kotae + B;
            } else{
                kotae = kotae;
            }
        } {
            if(i%A==0){
                kotae = kotae + B;
            } else{
                kotae = kotae;
            }
        } if(i%A==0){
                kotae = kotae + B;
            } else{
                kotae = kotae;
            } i%A==0 i%A i A 0 {
                kotae = kotae + B;
            } kotae = kotae + B kotae kotae + B kotae B {
                kotae = kotae;
            } kotae = kotae kotae kotae System.out.println(kotae) System.out.println System.out System System.out kotae String[] args args public 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 kotae = 0;
        for(int i=1; i<T+1; i++){
            if(i%A==0){
                kotae = kotae + B;
            } else{
                kotae = kotae;
            }
        }
        System.out.println(kotae);
    }
} public 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 kotae = 0;
        for(int i=1; i<T+1; i++){
            if(i%A==0){
                kotae = kotae + B;
            } else{
                kotae = kotae;
            }
        }
        System.out.println(kotae);
    }
} Main
import java.util.*;
public 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 kotae = 0;
        for(int i=1; i<T+1; i++){
            if(i%A==0){
                kotae = kotae + B;
            } else{
                kotae = kotae;
            }
        }
        System.out.println(kotae);
    }
}