import java.math.BigDecimal;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        // TODO 自動生成されたメソッド・スタブ

    	Scanner sc = new Scanner(System.in);

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

    	double val = (T + 0.5) / A;
    	BigDecimal val2 = new BigDecimal(val);
    	BigDecimal seijo = val2.setScale(0, BigDecimal.ROUND_DOWN);

    	int val3 = seijo.intValue();

    	System.out.println( B * val3);

    	sc.close();
    }


} import java.math.BigDecimal; BigDecimal java.math import java.util.Scanner; Scanner java.util public class Main {

    public static void main(String[] args) {
        // TODO 自動生成されたメソッド・スタブ

    	Scanner sc = new Scanner(System.in);

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

    	double val = (T + 0.5) / A;
    	BigDecimal val2 = new BigDecimal(val);
    	BigDecimal seijo = val2.setScale(0, BigDecimal.ROUND_DOWN);

    	int val3 = seijo.intValue();

    	System.out.println( B * val3);

    	sc.close();
    }


} Main public static void main(String[] args) {
        // TODO 自動生成されたメソッド・スタブ

    	Scanner sc = new Scanner(System.in);

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

    	double val = (T + 0.5) / A;
    	BigDecimal val2 = new BigDecimal(val);
    	BigDecimal seijo = val2.setScale(0, BigDecimal.ROUND_DOWN);

    	int val3 = seijo.intValue();

    	System.out.println( B * val3);

    	sc.close();
    } main {
        // TODO 自動生成されたメソッド・スタブ

    	Scanner sc = new Scanner(System.in);

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

    	double val = (T + 0.5) / A;
    	BigDecimal val2 = new BigDecimal(val);
    	BigDecimal seijo = val2.setScale(0, BigDecimal.ROUND_DOWN);

    	int val3 = seijo.intValue();

    	System.out.println( B * val3);

    	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 int T = sc.nextInt(); T sc.nextInt() sc.nextInt sc double val = (T + 0.5) / A; val (T + 0.5) / A (T + 0.5) T 0.5 A BigDecimal val2 = new BigDecimal(val); val2 new BigDecimal(val) BigDecimal seijo = val2.setScale(0, BigDecimal.ROUND_DOWN); seijo val2.setScale(0, BigDecimal.ROUND_DOWN) val2.setScale val2 0 BigDecimal.ROUND_DOWN BigDecimal BigDecimal.ROUND_DOWN int val3 = seijo.intValue(); val3 seijo.intValue() seijo.intValue seijo System.out.println( B * val3) System.out.println System.out System System.out B * val3 B val3 sc.close() sc.close sc String[] args args public class Main {

    public static void main(String[] args) {
        // TODO 自動生成されたメソッド・スタブ

    	Scanner sc = new Scanner(System.in);

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

    	double val = (T + 0.5) / A;
    	BigDecimal val2 = new BigDecimal(val);
    	BigDecimal seijo = val2.setScale(0, BigDecimal.ROUND_DOWN);

    	int val3 = seijo.intValue();

    	System.out.println( B * val3);

    	sc.close();
    }


} public class Main {

    public static void main(String[] args) {
        // TODO 自動生成されたメソッド・スタブ

    	Scanner sc = new Scanner(System.in);

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

    	double val = (T + 0.5) / A;
    	BigDecimal val2 = new BigDecimal(val);
    	BigDecimal seijo = val2.setScale(0, BigDecimal.ROUND_DOWN);

    	int val3 = seijo.intValue();

    	System.out.println( B * val3);

    	sc.close();
    }


} Main
import java.math.BigDecimal;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        // TODO 自動生成されたメソッド・スタブ

    	Scanner sc = new Scanner(System.in);

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

    	double val = (T + 0.5) / A;
    	BigDecimal val2 = new BigDecimal(val);
    	BigDecimal seijo = val2.setScale(0, BigDecimal.ROUND_DOWN);

    	int val3 = seijo.intValue();

    	System.out.println( B * val3);

    	sc.close();
    }


}