import java.util.Scanner;

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

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