How to generate SecurityBot Text using C#

Console Application using C# to show how th generate secrutybot text

try
			{
				Random rnd=new Random();
				
				const string Alphabets="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
				string stest=Alphabets.Substring(rnd.Next(1,26));
				string sTest=stest.Substring(0,1);
				string stest1=Alphabets.Substring(rnd.Next(16,52));
				string sTest1=stest1.Substring(0,1);
				txtShow.Text= rnd.Next(10,99).ToString()+sTest1.ToString()+rnd.Next(2,9)+sTest.ToString();
				string s="";
			}
			catch(Exception ex)
			{
				txtShow.Text= ex.Message.ToString();
			}