CheckForAPlayCard

using System;

namespace CheckForAPlayCard
{
    class CheckForAPlayCard
    {
        static void Main()
        {
            string input = Console.ReadLine();

            switch (input)
            {
                case "2":
                case "3":
                case "4":
                case "5":
                case "6":
                case "7":
                case "8":
                case "9":
                case "10":
                case "A":
                case "J":
                case "K":
                case "Q": Console.WriteLine("yes");
                          break;
                default:  Console.WriteLine("no");
                          break;
            }
        }
    }
}