using System;

namespace No338
{
    class Program
    {
        static void Main(string[] args)
        {
            int min_a = 100, min_b = 100;

            string[] data = Console.ReadLine().Split(' ');
            int A = int.Parse(data[0]);
            int B = int.Parse(data[1]);

            for (double a = 0.0; a <= 200.0; a++)
            {
                for (double b = 0.0; b <= 200.0; b++)
                {
                    if (A == (int)(a / (a + b) * 100 + 0.5) && B == (int)(b / (a + b) * 100 + 0.5))
                    {
                        if (min_a + min_b > (int)a + (int)b)
                        {
                            min_a = (int)a;
                            min_b = (int)b;
                        }
                    }
                }
            }

            Console.WriteLine(min_a + min_b);
        }
    }
}