using System;
public class Program
{
    public static void Main()
    {
        //int num = int.Parse(Console.ReadLine() ?? string.Empty);
        string[] num = (Console.ReadLine() ?? string.Empty).Trim().Split(' ');

        double price = int.Parse(num[0]);
        double zei = int.Parse(num[1]);

        double syouhi = zei / 100;
        double aa = price * syouhi; //消費税

        double money = price + aa;

        int index = money.ToString().IndexOf(".");
        if(index == -1)
        {
            Console.WriteLine("{0}",money);
        }
        else
        {
            string buy = money.ToString().Substring(0,index);
            Console.WriteLine("{0}",buy);
        }



    }
}