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

public class Main {

	static Scanner sc = new Scanner(System.in);

	public static void main(String[] args) {

		BigDecimal b = new BigDecimal(sc.nextInt());
		BigDecimal p = new BigDecimal(sc.nextInt());
		p = p.divide(new BigDecimal(100));
		p = p.add(new BigDecimal(1));

		System.out.println(b.multiply(p).setScale(0));
    }
}