using System;

using System.Text;

public class Program

{

    public static void Main()

    {

        StringBuilder b = new StringBuilder();

        for (int i=0; i<100000; i++) {

            b.AppendLine("LINHA" + i);

        }

        b.Remove(250000, b.ToString().Length - 250000);

        Console.WriteLine(b.ToString());

    }

}