using System;

using System.IO;

namespace Streawriter   

{

public class Program

{

    public static void Main()

    {

        var fileName = "filename.txt";

        WriteFile(fileName);

        var s = ReadAllText(fileName);

        Console.Write(s);

    }

    public static void WriteFile(string path)

    {

        File.WriteAllText(path, "");

    }

    public static string ReadAllText(string path)

    {

        return File.ReadAllText(path);

    }

}

}