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

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int d = sc.nextInt();
		int p = sc.nextInt();
		
		double taxRate = 1 + (double)p / 100;
		
		BigDecimal bd1 = new BigDecimal(Integer.toString(d));
		BigDecimal bd2 = new BigDecimal(Double.toString(taxRate));
		BigDecimal result = bd1.multiply(bd2);
		
		System.out.println(result.intValue());
		
		sc.close();
	}
}