import java.util.Scanner;

class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int A = sc.nextInt();
        int B = sc.nextInt();
        float T = Float.parseFloat(sc.next()) + 0.5F;

        int total = 0;
        int time = 0;
        while (true) {
            time += A;
            if (time > T) {
                break;
            } else {
                total += B;
            }
        }

        System.out.println(total);
        sc.close();
    }
} import java.util.Scanner; Scanner java.util class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int A = sc.nextInt();
        int B = sc.nextInt();
        float T = Float.parseFloat(sc.next()) + 0.5F;

        int total = 0;
        int time = 0;
        while (true) {
            time += A;
            if (time > T) {
                break;
            } else {
                total += B;
            }
        }

        System.out.println(total);
        sc.close();
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int A = sc.nextInt();
        int B = sc.nextInt();
        float T = Float.parseFloat(sc.next()) + 0.5F;

        int total = 0;
        int time = 0;
        while (true) {
            time += A;
            if (time > T) {
                break;
            } else {
                total += B;
            }
        }

        System.out.println(total);
        sc.close();
    } main {
        Scanner sc = new Scanner(System.in);

        int A = sc.nextInt();
        int B = sc.nextInt();
        float T = Float.parseFloat(sc.next()) + 0.5F;

        int total = 0;
        int time = 0;
        while (true) {
            time += A;
            if (time > T) {
                break;
            } else {
                total += B;
            }
        }

        System.out.println(total);
        sc.close();
    } 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 float T = Float.parseFloat(sc.next()) + 0.5F; T Float.parseFloat(sc.next()) + 0.5F Float.parseFloat(sc.next()) Float.parseFloat Float sc.next() sc.next sc 0.5F int total = 0; total 0 int time = 0; time 0 while (true) {
            time += A;
            if (time > T) {
                break;
            } else {
                total += B;
            }
        } true {
            time += A;
            if (time > T) {
                break;
            } else {
                total += B;
            }
        } time += A time A if (time > T) {
                break;
            } else {
                total += B;
            } time > T time T {
                break;
            } break; {
                total += B;
            } total += B total B System.out.println(total) System.out.println System.out System System.out total sc.close() sc.close sc String[] args args
import java.util.Scanner;

class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int A = sc.nextInt();
        int B = sc.nextInt();
        float T = Float.parseFloat(sc.next()) + 0.5F;

        int total = 0;
        int time = 0;
        while (true) {
            time += A;
            if (time > T) {
                break;
            } else {
                total += B;
            }
        }

        System.out.println(total);
        sc.close();
    }
}