using System.Numerics;

public class Program
{
    public static void Main()
    {

        //int num = int.Parse(Console.ReadLine() ?? string.Empty);
        string[] str = (Console.ReadLine() ?? string.Empty).Trim().Split(' ');
        //string str = Console.ReadLine() ?? string.Empty;


        BigInteger n = BigInteger.Parse(str[0]);
        BigInteger s = BigInteger.Parse(str[1]);

        BigInteger a = s / 2;

        if (a.ToString().Length == n && a >= 25&&a < 30)
        {
            Console.WriteLine("Yes");
        }
        else
        {
            Console.WriteLine("No");
        }


        //BigInteger n = BigInteger.Parse(str[0]);
        //BigInteger m = BigInteger.Parse(str[1]);
        //BigInteger k = BigInteger.Parse(str[2]);

        //if(n <= m +k)
        //{
        //    Console.WriteLine("Yes");
        //}
        //else
        //{
        //    Console.WriteLine("No");
        //}

    }

}