import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.math.BigDecimal;

public class ConsumTax{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);

        BigDecimal D = new BigDecimal(sc.next());
        BigDecimal P = new BigDecimal(sc.next());
        BigDecimal t = new BigDecimal("1");
        BigDecimal hund = new BigDecimal("100");
        BigDecimal tax = t.add(P.divide(hund));
        BigDecimal value = D.multiply(tax);

        System.out.println(value.intValue());
    }
}