using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        var datalist= new List<Tuple<long, string, string>>();

        datalist.Add(new Tuple<long, string, string>(123123, "xxx", "zz"));

        datalist.Add(new Tuple<long, string, string>(444555, "ybc", "bb"));

        datalist.Add(new Tuple<long, string, string>(444555, "abc", "aa"));

        datalist = datalist.OrderBy(x => x.Item1).ThenBy(x => x.Item3).ToList();

        foreach(var data in datalist)

        {

            Console.WriteLine("{0} {1} {2}", data.Item1,data.Item2, data.Item3);

        }

    }

}