import java.math.BigDecimal;
import java.util.Scanner;
public class no56 {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		BigDecimal D = sc.nextBigDecimal();//100
		BigDecimal hyaku = new BigDecimal("100");
		BigDecimal ichi = new BigDecimal("1");
		BigDecimal P = sc.nextBigDecimal().divide(hyaku).add(ichi);
		System.out.println(D.multiply(P).intValue());
	}
}