class Program
{
    static void Main(string[] args)
    {
        string[] input = Console.ReadLine()!.Split(' ');
        int year = int.Parse(input[0]);
        int month = int.Parse(input[1]);
        int day = int.Parse(input[2]);

        if (year >= 1989 && year <= 2019)
        {
            if (year == 1989 && month == 1 && day < 8)
            {
                Console.WriteLine("No");
            }
            else if (year == 2019 && month > 4)
            {
                Console.WriteLine("No");
            }
            else
            {
                Console.WriteLine("Yes");
            }
        }
        else
        {
            Console.WriteLine("No");
        }
    }
}