import 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 i=2;
        double A_num=A;
        int num=0;
        while(A_num<T+0.5){
            num+=B;
            A_num=A*i;
            i++;
        };
        System.out.println(num);
    }
} import java.util.*; util.* java 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 i=2;
        double A_num=A;
        int num=0;
        while(A_num<T+0.5){
            num+=B;
            A_num=A*i;
            i++;
        };
        System.out.println(num);
    }
} 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 i=2;
        double A_num=A;
        int num=0;
        while(A_num<T+0.5){
            num+=B;
            A_num=A*i;
            i++;
        };
        System.out.println(num);
    } main {
        Scanner sc = new Scanner(System.in);
        double A =sc.nextInt();
        int B = sc.nextInt();
        double T = sc.nextInt();
        int i=2;
        double A_num=A;
        int num=0;
        while(A_num<T+0.5){
            num+=B;
            A_num=A*i;
            i++;
        };
        System.out.println(num);
    } 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 i=2; i 2 double A_num=A; A_num A int num=0; num 0 while(A_num<T+0.5){
            num+=B;
            A_num=A*i;
            i++;
        } A_num<T+0.5 A_num T+0.5 T 0.5 {
            num+=B;
            A_num=A*i;
            i++;
        } num+=B num B A_num=A*i A_num A*i A i i++ i System.out.println(num) System.out.println System.out System System.out num 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 i=2;
        double A_num=A;
        int num=0;
        while(A_num<T+0.5){
            num+=B;
            A_num=A*i;
            i++;
        };
        System.out.println(num);
    }
} 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 i=2;
        double A_num=A;
        int num=0;
        while(A_num<T+0.5){
            num+=B;
            A_num=A*i;
            i++;
        };
        System.out.println(num);
    }
} Main
import 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 i=2;
        double A_num=A;
        int num=0;
        while(A_num<T+0.5){
            num+=B;
            A_num=A*i;
            i++;
        };
        System.out.println(num);
    }
}