using System;

namespace yukicoder
{
    class Program
    {
        static void Main(string[] args)
        {
            double a = double.Parse(Console.ReadLine());
            double b =double.Parse( Console.ReadLine());
            double ans = 0;
            a = 100 - a;
            ans = b/a;
            ans = Math.Floor(ans*100);
            Console.WriteLine(ans);
        }
    }
}