import java.util.Scanner;

public class Main {
 
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int a = scanner.nextInt();
        int b = scanner.nextInt();
        int c = scanner.nextInt();


        int count = 0;
        for(int i = 0; i <= c; i++) {
            if(i % a == 0 && i != 0) count += b;
        }
        System.out.println(count);

    }
} import java.util.Scanner; Scanner java.util public class Main {
 
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int a = scanner.nextInt();
        int b = scanner.nextInt();
        int c = scanner.nextInt();


        int count = 0;
        for(int i = 0; i <= c; i++) {
            if(i % a == 0 && i != 0) count += b;
        }
        System.out.println(count);

    }
} Main public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int a = scanner.nextInt();
        int b = scanner.nextInt();
        int c = scanner.nextInt();


        int count = 0;
        for(int i = 0; i <= c; i++) {
            if(i % a == 0 && i != 0) count += b;
        }
        System.out.println(count);

    } main {
        Scanner scanner = new Scanner(System.in);
        int a = scanner.nextInt();
        int b = scanner.nextInt();
        int c = scanner.nextInt();


        int count = 0;
        for(int i = 0; i <= c; i++) {
            if(i % a == 0 && i != 0) count += b;
        }
        System.out.println(count);

    } 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 c = scanner.nextInt(); c scanner.nextInt() scanner.nextInt scanner int count = 0; count 0 for(int i = 0; i <= c; i++) {
            if(i % a == 0 && i != 0) count += b;
        } int i = 0; int i = 0; i 0 i <= c i c i++ i++ i {
            if(i % a == 0 && i != 0) count += b;
        } {
            if(i % a == 0 && i != 0) count += b;
        } if(i % a == 0 && i != 0) count += b; i % a == 0 && i != 0 i % a == 0 i % a i a 0 i != 0 i 0 count += b count b System.out.println(count) System.out.println System.out System System.out count String[] args args public class Main {
 
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int a = scanner.nextInt();
        int b = scanner.nextInt();
        int c = scanner.nextInt();


        int count = 0;
        for(int i = 0; i <= c; i++) {
            if(i % a == 0 && i != 0) count += b;
        }
        System.out.println(count);

    }
} public class Main {
 
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int a = scanner.nextInt();
        int b = scanner.nextInt();
        int c = scanner.nextInt();


        int count = 0;
        for(int i = 0; i <= c; i++) {
            if(i % a == 0 && i != 0) count += b;
        }
        System.out.println(count);

    }
} Main
import java.util.Scanner;

public class Main {
 
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int a = scanner.nextInt();
        int b = scanner.nextInt();
        int c = scanner.nextInt();


        int count = 0;
        for(int i = 0; i <= c; i++) {
            if(i % a == 0 && i != 0) count += b;
        }
        System.out.println(count);

    }
}