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 T = scanner.nextInt();
        int time = 0;
        int biscuitNum = 0;

        if(A <= T) {
            time += A;
            for (int i = 0; time <= T + 0.5; ++i) {
                time += A;
                biscuitNum += B;
            }
        }
        System.out.println(biscuitNum);
    }
} 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 T = scanner.nextInt();
        int time = 0;
        int biscuitNum = 0;

        if(A <= T) {
            time += A;
            for (int i = 0; time <= T + 0.5; ++i) {
                time += A;
                biscuitNum += B;
            }
        }
        System.out.println(biscuitNum);
    }
} Main public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int A = scanner.nextInt();
        int B = scanner.nextInt();
        int T = scanner.nextInt();
        int time = 0;
        int biscuitNum = 0;

        if(A <= T) {
            time += A;
            for (int i = 0; time <= T + 0.5; ++i) {
                time += A;
                biscuitNum += B;
            }
        }
        System.out.println(biscuitNum);
    } main {
        Scanner scanner = new Scanner(System.in);
        int A = scanner.nextInt();
        int B = scanner.nextInt();
        int T = scanner.nextInt();
        int time = 0;
        int biscuitNum = 0;

        if(A <= T) {
            time += A;
            for (int i = 0; time <= T + 0.5; ++i) {
                time += A;
                biscuitNum += B;
            }
        }
        System.out.println(biscuitNum);
    } 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 T = scanner.nextInt(); T scanner.nextInt() scanner.nextInt scanner int time = 0; time 0 int biscuitNum = 0; biscuitNum 0 if(A <= T) {
            time += A;
            for (int i = 0; time <= T + 0.5; ++i) {
                time += A;
                biscuitNum += B;
            }
        } A <= T A T {
            time += A;
            for (int i = 0; time <= T + 0.5; ++i) {
                time += A;
                biscuitNum += B;
            }
        } time += A time A for (int i = 0; time <= T + 0.5; ++i) {
                time += A;
                biscuitNum += B;
            } int i = 0; int i = 0; i 0 time <= T + 0.5 time T + 0.5 T 0.5 ++i ++i i {
                time += A;
                biscuitNum += B;
            } {
                time += A;
                biscuitNum += B;
            } time += A time A biscuitNum += B biscuitNum B System.out.println(biscuitNum) System.out.println System.out System System.out biscuitNum 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 T = scanner.nextInt();
        int time = 0;
        int biscuitNum = 0;

        if(A <= T) {
            time += A;
            for (int i = 0; time <= T + 0.5; ++i) {
                time += A;
                biscuitNum += B;
            }
        }
        System.out.println(biscuitNum);
    }
} public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int A = scanner.nextInt();
        int B = scanner.nextInt();
        int T = scanner.nextInt();
        int time = 0;
        int biscuitNum = 0;

        if(A <= T) {
            time += A;
            for (int i = 0; time <= T + 0.5; ++i) {
                time += A;
                biscuitNum += B;
            }
        }
        System.out.println(biscuitNum);
    }
} 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 T = scanner.nextInt();
        int time = 0;
        int biscuitNum = 0;

        if(A <= T) {
            time += A;
            for (int i = 0; time <= T + 0.5; ++i) {
                time += A;
                biscuitNum += B;
            }
        }
        System.out.println(biscuitNum);
    }
}
