﻿namespace BooleanVar
{
    using System;

    class EntryPoint
    {
        static void Main()
        {
            string input = Console.ReadLine();
            bool boolean = Convert.ToBoolean(input);
            Console.WriteLine(boolean ? "Yes" : "No");
            //Console.WriteLine(Convert.ToBoolean(Console.ReadLine()) ? "Yes" : "No");
        }
    }
}
