mirror words

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

namespace _02._Boss_Rush
{
    class Program
    {
        static void Main(string[] args)
        {
            string input = Console.ReadLine();
            Regex regex = new Regex(@"([@|#])(?<word1>[a-zA-Z]{3,})\1\1(?<word2>[a-zA-Z]{3,})\1");

            MatchCollection match = regex.Matches(input);

            List<string> matches = new List<string>();

            int count = 0;

            foreach (Match item in match)
            {
                if (item.Success)
                {
                    string firstWord = item.Groups["word1"].Value;
                    string secondWord = item.Groups["word2"].Value;

                    char[] reversed = secondWord.Reverse().ToArray();
                    string newWord = new string(reversed);

                    if (newWord == firstWord)
                    {
                        matches.Add($"{firstWord} <=> {secondWord}");

                    }
                    count++;
                }

            }

            if(match.Count == 0)
            {
                Console.WriteLine("No word pairs found!");
            }
            else
            {
                Console.WriteLine($"{count} word pairs found!");
            }
            if (matches.Count == 0)
            {
                Console.WriteLine("No mirror words!");
            }
            else
            {
                Console.WriteLine("The mirror words are:");
                Console.WriteLine(string.Join(", ", matches));
            }


        }
    }
}