WinningTicket*-matchAllCollectionAndMatchOneSymbol

using System;
using System.Text.RegularExpressions;


namespace TextAndRegex
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] ticketsCollection =
                Console.ReadLine().Split(new string[] { ",", " " }, StringSplitOptions.RemoveEmptyEntries);
            Regex regexForWinningTicket = new Regex(@"([@]{6,10})|([#]{6,10})|([$]{6,10})|([\^]{6,10})");

            foreach (string ticket in ticketsCollection)
            {
                if (ticket.Length != 20)
                {
                    Console.WriteLine("invalid ticket");
                }

                else if (ticket.Length == 20) //only 20 is valid ticket length
                {
                    string leftSide = ticket.Substring(0, 10); //left side
                    string rightSide = ticket.Substring(10, 10); //right side
                    MatchCollection matchLeftSide = regexForWinningTicket.Matches(leftSide); // match left side to check is it valid
                    MatchCollection matchRightSide = regexForWinningTicket.Matches(rightSide); //match right side to check is it valid

                    if (regexForWinningTicket.IsMatch(leftSide) && regexForWinningTicket.IsMatch(rightSide))
                    {
                        if (matchLeftSide[0].Value.Contains(matchRightSide[0].Value[0]) == false)//if the all left collection contains the first symbol from the right collection==false
                        {
                            Console.WriteLine($"ticket \"{ticket}\" - no match");
                        }

                        else if (matchLeftSide[0].Value[0]==matchRightSide[0].Value[0])//if the first symbol from the left collection is equal to the first symbol from the right collection
                        {
                            char theSameSymbol = matchRightSide[0].Value[0];
                            int validTheRepeatingLengthInBothSide = Math.Min(
                                matchLeftSide[0].Value.Length,
                                matchRightSide[0].Value.Length);
                            if ((validTheRepeatingLengthInBothSide >= 6 && validTheRepeatingLengthInBothSide <= 9))
                            {
                                Console.WriteLine(
                                    $"ticket \"{ticket}\" - {validTheRepeatingLengthInBothSide}{theSameSymbol}");
                            }

                            else if ((validTheRepeatingLengthInBothSide == 10))
                            {
                                Console.WriteLine(
                                $"ticket \"{ticket}\" - {validTheRepeatingLengthInBothSide}{theSameSymbol} Jackpot!");
                            }
                        }
                    }

                    else if (regexForWinningTicket.IsMatch(leftSide) == false ||
                             regexForWinningTicket.IsMatch(rightSide) == false)
                    {
                        Console.WriteLine($"ticket \"{ticket}\" - no match");
                    }
                }
            }
        }
    }
}