using System;
using System.Linq;

class Program {
  static void Main() {
    var arr = Console.ReadLine().Split().Select(int.Parse).ToArray();
    var y = arr[0];
    var m = arr[1];
    var d = arr[2];
    bool f = true;
    if (y < 1989 || 2019 < y) {
      f = false;
    } else if (y == 1989 && m == 1 && d <= 7) {
      f = false;
    } else if (y == 2019 && m >= 5) {
      f = false;
    }
    Console.WriteLine(f ? "Yes" : "No"); 
  }
}