MirrorWord-with Char[] and Reverse()

using System;
using System.Text.RegularExpressions;
using System.Collections.Generic;
using System.Linq;

namespace MirrorWord
{
    class Program
    {
        static void Main(string[] args)
        {
            string input = Console.ReadLine();
            var list = new List<string>();
            Regex regexForWords = new Regex(@"(#|@)(?'first'[a-zA-Z]{3,})\1\1(?'second'[a-zA-Z]{3,})\1");
            MatchCollection matchesForWord = regexForWords.Matches(input);
            if (regexForWords.IsMatch(input))
            {
                foreach (Match match in matchesForWord)
                {
                    string firstWord = match.Groups["first"].Value;
                    string secondWord = match.Groups["second"].Value;
                    char[] reverse= secondWord.Reverse().ToArray(); //char Array
                    string reverseSecondWord = string.Join("", reverse);
                    if (firstWord == reverseSecondWord)
                    {
                        string stringForAdd = firstWord + " " + "<=>" + " " + secondWord;
                        list.Add(stringForAdd);
                    }
                }

                Console.WriteLine($"{matchesForWord.Count} word pairs found!");
                if (list.Count > 0)
                {
                    Console.WriteLine("The mirror words are:");
                    Console.WriteLine(string.Join(", ",list));
                }
                else
                {
                    Console.WriteLine("No mirror words!");
                }
            }

            else
            {
                Console.WriteLine("No word pairs found!");
                Console.WriteLine("No mirror words!");
            }
        }
    }
}