using System;

public class Program

{

         public static void Main() 

     {

         Console.WriteLine("Cumhuriyetin yaraasi");

         int n = int.Parse(Console.ReadLine());

             if(n == 1918)

         Console.WriteLine("Dogrudur");

             else

         Console.WriteLine("Yalnishdir");

         Console.ReadLine();     

     }

}