using System;

namespace yukicoder
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] str = Console.ReadLine().Split(' ');

            double D = int.Parse(str[0]);
            double P = int.Parse(str[1]);

            double PP = P / 100;
            double a = D * PP;
            double ans = D + a;
            if (ans % 1 != 0)
            {
                double b = a % 1;
                double c = ans - b;
                Console.WriteLine(c);

            }
            else
            {
                Console.WriteLine(ans);
            }


        }
    }
}