import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        double a = sc.nextInt();
        int b = sc.nextInt();
        double t = sc.nextInt();
        int total = 0;
        double sum = 0;

        for (int i = 1; sum < t + 0.5; i++) {
            sum = i * a;
            if (sum < t + 0.5)
                total += b;
        }
        System.out.println(total);
    }
} import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        double a = sc.nextInt();
        int b = sc.nextInt();
        double t = sc.nextInt();
        int total = 0;
        double sum = 0;

        for (int i = 1; sum < t + 0.5; i++) {
            sum = i * a;
            if (sum < t + 0.5)
                total += b;
        }
        System.out.println(total);
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        double a = sc.nextInt();
        int b = sc.nextInt();
        double t = sc.nextInt();
        int total = 0;
        double sum = 0;

        for (int i = 1; sum < t + 0.5; i++) {
            sum = i * a;
            if (sum < t + 0.5)
                total += b;
        }
        System.out.println(total);
    } main {
        Scanner sc = new Scanner(System.in);
        double a = sc.nextInt();
        int b = sc.nextInt();
        double t = sc.nextInt();
        int total = 0;
        double sum = 0;

        for (int i = 1; sum < t + 0.5; i++) {
            sum = i * a;
            if (sum < t + 0.5)
                total += b;
        }
        System.out.println(total);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) double a = sc.nextInt(); a sc.nextInt() sc.nextInt sc int b = sc.nextInt(); b sc.nextInt() sc.nextInt sc double t = sc.nextInt(); t sc.nextInt() sc.nextInt sc int total = 0; total 0 double sum = 0; sum 0 for (int i = 1; sum < t + 0.5; i++) {
            sum = i * a;
            if (sum < t + 0.5)
                total += b;
        } int i = 1; int i = 1; i 1 sum < t + 0.5 sum t + 0.5 t 0.5 i++ i++ i {
            sum = i * a;
            if (sum < t + 0.5)
                total += b;
        } {
            sum = i * a;
            if (sum < t + 0.5)
                total += b;
        } sum = i * a sum i * a i a if (sum < t + 0.5)
                total += b; sum < t + 0.5 sum t + 0.5 t 0.5 total += b total b System.out.println(total) System.out.println System.out System System.out total String[] args args public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        double a = sc.nextInt();
        int b = sc.nextInt();
        double t = sc.nextInt();
        int total = 0;
        double sum = 0;

        for (int i = 1; sum < t + 0.5; i++) {
            sum = i * a;
            if (sum < t + 0.5)
                total += b;
        }
        System.out.println(total);
    }
} public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        double a = sc.nextInt();
        int b = sc.nextInt();
        double t = sc.nextInt();
        int total = 0;
        double sum = 0;

        for (int i = 1; sum < t + 0.5; i++) {
            sum = i * a;
            if (sum < t + 0.5)
                total += b;
        }
        System.out.println(total);
    }
} Main
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        double a = sc.nextInt();
        int b = sc.nextInt();
        double t = sc.nextInt();
        int total = 0;
        double sum = 0;

        for (int i = 1; sum < t + 0.5; i++) {
            sum = i * a;
            if (sum < t + 0.5)
                total += b;
        }
        System.out.println(total);
    }
}