04_winningTicket

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

namespace _04_winnigTicket
{
    class winnigTicket
    {
        static void Main(string[] args)
        {
            string[] tickets = Console.ReadLine().Split(new string[] { ", ", " " }, StringSplitOptions.RemoveEmptyEntries).ToArray();

            foreach (var ticket in tickets)
            {
                if (ticket.Length < 20 || ticket.Length > 20)
                {
                    Console.WriteLine("invalid ticket");
                }
                else
                {
                    CheckTicket(ticket);
                }
            }
        }

        private static void CheckTicket(string ticket)
        {
            string leftHalf = ticket.Substring(0, 10);
            string rightHalf = ticket.Substring(10, 10);
            string pattern = @"[@]{6,}|[#]{6,}|[$]{6,}|[\^]{6,}";
            string ticketLeftPart = (Regex.Match(leftHalf, pattern)).ToString();
            string ticketRightPart = (Regex.Match(rightHalf, pattern)).ToString();
            if (ticketLeftPart == ticketRightPart && ticketLeftPart.Length >= 6 && ticketLeftPart.Length < 10)
            {
                char symbol = ticketLeftPart[0];
                Console.WriteLine("ticket \"{0}\" - {1}{2}", ticket, ticketLeftPart.Length, symbol);
            }
            else if (ticketLeftPart == ticketRightPart && ticketLeftPart.Length == 10)
            {
                char symbol = ticketLeftPart[0];
                Console.WriteLine("ticket \"{0}\" - {1}{2} Jackpot!", ticket, ticketLeftPart.Length, symbol);
            }
            else
            {
                Console.WriteLine("ticket \"{0}\" - no match", ticket);
            }
        }
    }
}