Program.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace StringTutorial
{
    internal class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Enter a string to encrypt:");
            

            try
            {
                
            }
            catch ()
            {
                  
            }
            finally
            {
                Console.WriteLine("Press any key to exit...");
                Console.ReadKey();
            }
        }

        static string EncryptString(string inputString)
        {
            // Guard clause to check if input is a valid string
            
            // Reverse the string
            

            // Convert every second charatcer to uppercase
           

            // Interpolateion and concatenation
          

            // String conversion using ASCII values to shift each character by 1
            
            
            string finalEncryption = new string(finalEncryptionChars);
            return finalEncryption;
        }
    }
}