using System;
using System.Web;
using System.IO;
class MyNewClass
{
public static void Main()
{
String myString;
Console.WriteLine("Enter a string having '&' or '\"' in it: ");
myString=Console.ReadLine();
String myEncodedString;
// Encode the string.
myEncodedString = HttpUtility.HtmlEncode(myString);
Console.WriteLine("HTML Encoded string is "+myEncodedString);
StringWriter myWriter = new StringWriter();
// Decode the encoded string.
HttpUtility.HtmlDecode(myEncodedString, myWriter);
Console.Write("Decoded string of the above encoded string is "+myWriter.ToString());
}
}