using System;
using System.IO;
using System.Text;
class MainClass
{
public static void Main()
{
using (StreamWriter output = new StreamWriter("output.txt"))
{
string srcString = "Area = \u03A0r^2";
byte[] asciiString = Encoding.ASCII.GetBytes(srcString);
output.WriteLine("ASCII Bytes: {0}",
BitConverter.ToString(asciiString));
}
}
}