using System;

class Program
{
    static void Main()
    {
        var s = Console.ReadLine().Split();
        int y = int.Parse(s[0]);
        int m = int.Parse(s[1]);
        int d = int.Parse(s[2]);

        if ((y > 1989 || (y == 1989 && (m > 1 || (m == 1 && d >= 8)))) &&
            (y < 2019 || (y == 2019 && (m < 4 || (m == 4 && d <= 30)))))
            Console.WriteLine("Yes");
        else
            Console.WriteLine("No");
    }
}