import java.util.Scanner;

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 sum = 0;

        for (int i = 1; i < t + 1; i++) {
            if (i % a == 0) {
                sum += b;
            }
        }

        System.out.println(sum);
    }
} import java.util.Scanner; Scanner 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 sum = 0;

        for (int i = 1; i < t + 1; i++) {
            if (i % a == 0) {
                sum += b;
            }
        }

        System.out.println(sum);
    }
} 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 sum = 0;

        for (int i = 1; i < t + 1; i++) {
            if (i % a == 0) {
                sum += b;
            }
        }

        System.out.println(sum);
    } main {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int t = sc.nextInt();

        int sum = 0;

        for (int i = 1; i < t + 1; i++) {
            if (i % a == 0) {
                sum += b;
            }
        }

        System.out.println(sum);
    } 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 sum = 0; sum 0 for (int i = 1; i < t + 1; i++) {
            if (i % a == 0) {
                sum += b;
            }
        } int i = 1; int i = 1; i 1 i < t + 1 i t + 1 t 1 i++ i++ i {
            if (i % a == 0) {
                sum += b;
            }
        } {
            if (i % a == 0) {
                sum += b;
            }
        } if (i % a == 0) {
                sum += b;
            } i % a == 0 i % a i a 0 {
                sum += b;
            } sum += b sum b System.out.println(sum) System.out.println System.out System System.out sum 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 sum = 0;

        for (int i = 1; i < t + 1; i++) {
            if (i % a == 0) {
                sum += b;
            }
        }

        System.out.println(sum);
    }
} 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 sum = 0;

        for (int i = 1; i < t + 1; i++) {
            if (i % a == 0) {
                sum += b;
            }
        }

        System.out.println(sum);
    }
} Main
import java.util.Scanner;

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 sum = 0;

        for (int i = 1; i < t + 1; i++) {
            if (i % a == 0) {
                sum += b;
            }
        }

        System.out.println(sum);
    }
}