import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner std = new Scanner(System.in);
        int A = std.nextInt();
        int B = std.nextInt();
        int T = std.nextInt();

        double totalTime = T + 0.5;
        int takes = (int)totalTime / A;
        System.out.println(B * takes);
    }
} import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {
        Scanner std = new Scanner(System.in);
        int A = std.nextInt();
        int B = std.nextInt();
        int T = std.nextInt();

        double totalTime = T + 0.5;
        int takes = (int)totalTime / A;
        System.out.println(B * takes);
    }
} Main public static void main(String[] args) {
        Scanner std = new Scanner(System.in);
        int A = std.nextInt();
        int B = std.nextInt();
        int T = std.nextInt();

        double totalTime = T + 0.5;
        int takes = (int)totalTime / A;
        System.out.println(B * takes);
    } main {
        Scanner std = new Scanner(System.in);
        int A = std.nextInt();
        int B = std.nextInt();
        int T = std.nextInt();

        double totalTime = T + 0.5;
        int takes = (int)totalTime / A;
        System.out.println(B * takes);
    } Scanner std = new Scanner(System.in); std new Scanner(System.in) int A = std.nextInt(); A std.nextInt() std.nextInt std int B = std.nextInt(); B std.nextInt() std.nextInt std int T = std.nextInt(); T std.nextInt() std.nextInt std double totalTime = T + 0.5; totalTime T + 0.5 T 0.5 int takes = (int)totalTime / A; takes (int)totalTime / A (int)totalTime A System.out.println(B * takes) System.out.println System.out System System.out B * takes B takes String[] args args public class Main {
    public static void main(String[] args) {
        Scanner std = new Scanner(System.in);
        int A = std.nextInt();
        int B = std.nextInt();
        int T = std.nextInt();

        double totalTime = T + 0.5;
        int takes = (int)totalTime / A;
        System.out.println(B * takes);
    }
} public class Main {
    public static void main(String[] args) {
        Scanner std = new Scanner(System.in);
        int A = std.nextInt();
        int B = std.nextInt();
        int T = std.nextInt();

        double totalTime = T + 0.5;
        int takes = (int)totalTime / A;
        System.out.println(B * takes);
    }
} Main
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner std = new Scanner(System.in);
        int A = std.nextInt();
        int B = std.nextInt();
        int T = std.nextInt();

        double totalTime = T + 0.5;
        int takes = (int)totalTime / A;
        System.out.println(B * takes);
    }
}
