using System;

public class Program

{

    public static void Main()

    {

        string normal = "first line \n second line";

        string verbatim = @"first line \n second line";

        Console.WriteLine(normal);

        // --- output:

        // first line 

        //  second line

        Console.WriteLine(verbatim);

        // --- output:

        // first line \n second line

        // need to use '\' to escape the backslash character

        string filename1 = "c:\\documents\\files\\u0066.txt";

        // ignore escape sequences

        string filename2 = @"c:\documents\files\u0066.txt";

        Console.WriteLine(filename1);

        // --- output:

        // c:\documents\files\u0066.txt

        Console.WriteLine(filename2);

        // --- output:

        // c:\documents\files\u0066.txt

    }

}