4 u

using System;
using System.IO;
using System.Linq;
using System.Collections.Generic;
using System.Text;
namespace Example
{

    struct Transport : IComparable<Transport>
    {
        string Marka;
        string Number;
        string Famil;
        int Year;
        int Probeg;

        public Transport(string Marka, string Number, string Famil, int Year, int Probeg)
        {
            this.Marka = Marka;
            this.Number = Number;
            this.Famil = Famil;
            this.Year = Year;
            this.Probeg = Probeg;
        }
        public void Write(int k, StreamWriter file)
        {
            if (k >= this.Year)
                file.WriteLine(this);
        }
        public override string ToString() //Преобразование ToString()
        {
            return "" + Marka + " " + Number + " " + Famil + " " + Year.ToString() + " " + Probeg.ToString() + "";
        }

        public bool isNew(int currentYear)
        {
            return this.Year == currentYear;
        }



        public int CompareTo(Transport b) // сортировка
        {
            return this.Marka.CompareTo(b.Marka);
        }
    }


    class Program
    {


        static void Main()
        {
            string[] inpLine = null;
            using (StreamReader inFile = new StreamReader("D:/input.txt", Encoding.Default))
            {
                 inpLine = inFile.ReadToEnd().Split('\n');
            }

            Transport[] trans = new Transport[inpLine.Length];
            for (int i = 0; i < inpLine.Length; i++)
            {
                string [] s = inpLine[i].Split();
                trans[i] = new Transport(s[0], s[1], s[2], Convert.ToInt32(s[3]), Convert.ToInt32(s[4]));
            }
            int currentYear = 2000;
            Array.Sort(trans);
            var res = from u in trans
                      where u.isNew(currentYear)
                      select u;
            using (StreamWriter fileOut = new StreamWriter("D:/output.txt"))
            {
                foreach (var v in res)
                    fileOut.WriteLine(v);
            }

        }
    }
}