using System;

namespace yukicoder
{
    class Program
    {

        static void Main(string[] args)
        {
            var S = Console.ReadLine();

            var F = S.Split(" ");

            double s1 = double.Parse(F[0]);
            double s2 = double.Parse(F[1]);

            double s3 = s2 * 0.01;

            double sum = s1 + (s1 * s3);
            Console.WriteLine((int)sum);
            
        }
    }
}