using System;

using System.Linq;

public class Program

{

    public static long RandomLong()

    {

      return BitConverter.ToInt64(Guid.NewGuid().ToByteArray(), 0);

    }

    public static void Main()

    {

        foreach (var i in Enumerable.Range(0, 10).Select(x => RandomLong()))

        {

            Console.WriteLine(i);

        }

    }

}