using System;

using System.IO;

public class Program

{

    public static void Main()

    {   

        using(var ms = new MemoryStream())

        using(var sr = new StreamReader(ms, System.Text.Encoding.UTF8, true, 128))

        using(var sw = new StreamWriter(ms, System.Text.Encoding.UTF8) { AutoFlush = true})

        {

            var content = "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABC\r" + "\nKEK";

            sw.Write(content);

            ms.Position = 0;

            Console.WriteLine(sr.ReadLine());

            Console.WriteLine(sr.ReadLine());

        }

    }

}