import java.util.*;

class Main{
    public static void main(String[] args){

        Scanner sc = new Scanner(System.in);

        int A = sc.nextInt();
        int B = sc.nextInt();
        int T = sc.nextInt();

        int bic = 0;
        double t = (T+0.5)/A;
        for(int i=1;i<=t;i++){
               bic +=B;
        }
        System.out.println(bic);
    }
} import java.util.*; util.* java class Main{
    public static void main(String[] args){

        Scanner sc = new Scanner(System.in);

        int A = sc.nextInt();
        int B = sc.nextInt();
        int T = sc.nextInt();

        int bic = 0;
        double t = (T+0.5)/A;
        for(int i=1;i<=t;i++){
               bic +=B;
        }
        System.out.println(bic);
    }
} Main public static void main(String[] args){

        Scanner sc = new Scanner(System.in);

        int A = sc.nextInt();
        int B = sc.nextInt();
        int T = sc.nextInt();

        int bic = 0;
        double t = (T+0.5)/A;
        for(int i=1;i<=t;i++){
               bic +=B;
        }
        System.out.println(bic);
    } main {

        Scanner sc = new Scanner(System.in);

        int A = sc.nextInt();
        int B = sc.nextInt();
        int T = sc.nextInt();

        int bic = 0;
        double t = (T+0.5)/A;
        for(int i=1;i<=t;i++){
               bic +=B;
        }
        System.out.println(bic);
    } 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 int T = sc.nextInt(); T sc.nextInt() sc.nextInt sc int bic = 0; bic 0 double t = (T+0.5)/A; t (T+0.5)/A (T+0.5) T 0.5 A for(int i=1;i<=t;i++){
               bic +=B;
        } int i=1; int i=1; i 1 i<=t i t i++ i++ i {
               bic +=B;
        } {
               bic +=B;
        } bic +=B bic B System.out.println(bic) System.out.println System.out System System.out bic String[] args args
import java.util.*;

class Main{
    public static void main(String[] args){

        Scanner sc = new Scanner(System.in);

        int A = sc.nextInt();
        int B = sc.nextInt();
        int T = sc.nextInt();

        int bic = 0;
        double t = (T+0.5)/A;
        for(int i=1;i<=t;i++){
               bic +=B;
        }
        System.out.println(bic);
    }
}