using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace EnumLargeTest
{
    class Program
    {
        static void Main(string[] args)
        {
            ulong u;

            Console.WriteLine(1L << 56);

            //72057594037927936
            Console.WriteLine(1L << 31);

            Console.ReadKey();
        }
    }
}