CardWars Corrected 1

using System;
using System.Numerics;

class cardWars
{
    static void Main()
    {
        int numberOfGames = int.Parse(Console.ReadLine());
        string[] drawnCards = new string[6 * numberOfGames];
        for (int i = 0; i < 6 * numberOfGames; i++)
        {
            drawnCards[i] = Console.ReadLine();
        }

        int round = 6;
        int counter = 0;
        int ownedCard = 3;
        int firstPlayerGamesWon = 0;
        int secondPlayerGamesWon = 0;
        BigInteger firstPlayerScore = 0;
        BigInteger secondPlayerScore = 0;
        for (int i = 0; i < numberOfGames; i++)
        {
            int firstPlayerRoundScore = 0;
            int secondPlayerRoundScore = 0;
            bool hasFirstX = false;
            bool hasSecondX = false;
            while (counter != round)
            {
                if (counter < ownedCard)
                {
                    switch (drawnCards[counter])
                    {
                        case "2": firstPlayerRoundScore += 10; break;
                        case "3": firstPlayerRoundScore += 9; break;
                        case "4": firstPlayerRoundScore += 8; break;
                        case "5": firstPlayerRoundScore += 7; break;
                        case "6": firstPlayerRoundScore += 6; break;
                        case "7": firstPlayerRoundScore += 5; break;
                        case "8": firstPlayerRoundScore += 4; break;
                        case "9": firstPlayerRoundScore += 3; break;
                        case "10": firstPlayerRoundScore += 2; break;
                        case "J": firstPlayerRoundScore += 11; break;
                        case "Q": firstPlayerRoundScore += 12; break;
                        case "K": firstPlayerRoundScore += 13; break;
                        case "A": firstPlayerRoundScore += 1; break;
                        case "X": hasFirstX = true; break;
                        case "Y": firstPlayerScore -= 200; break;
                        case "Z": firstPlayerScore *= 2; break;
                        default:
                            break;
                    }
                }
                else
                {
                    switch (drawnCards[counter])
                    {
                        case "2": secondPlayerRoundScore += 10; break;
                        case "3": secondPlayerRoundScore += 9; break;
                        case "4": secondPlayerRoundScore += 8; break;
                        case "5": secondPlayerRoundScore += 7; break;
                        case "6": secondPlayerRoundScore += 6; break;
                        case "7": secondPlayerRoundScore += 5; break;
                        case "8": secondPlayerRoundScore += 4; break;
                        case "9": secondPlayerRoundScore += 3; break;
                        case "10": secondPlayerRoundScore += 2; break;
                        case "J": secondPlayerRoundScore += 11; break;
                        case "Q": secondPlayerRoundScore += 12; break;
                        case "K": secondPlayerRoundScore += 13; break;
                        case "A": secondPlayerRoundScore += 1; break;
                        case "X": hasSecondX = true; break;
                        case "Y": secondPlayerScore -= 200; break;
                        case "Z": secondPlayerScore *= 2; break;


                        default:
                            break;
                    }
                }
                counter++;
            }
            if (hasFirstX == true && hasSecondX == true)
            {
                firstPlayerScore += 50;
                secondPlayerScore += 50;
            }
            else if (hasFirstX && hasSecondX == false)
            {
                Console.WriteLine("X card drawn! Player one wins the match!");
                return;
            }
            else if (hasFirstX == false && hasSecondX)
            {
                Console.WriteLine("X card drawn! Player two wins the match!");
                return;
            }
            if (secondPlayerRoundScore > firstPlayerRoundScore)
            {
                secondPlayerScore += secondPlayerRoundScore;
                secondPlayerGamesWon++;
            }
            else if (secondPlayerRoundScore < firstPlayerRoundScore)
            {
                firstPlayerScore += firstPlayerRoundScore;
                firstPlayerGamesWon++;
            }
            round += 6;
            ownedCard += 6;
        }
        if (secondPlayerScore == firstPlayerScore)
        {
            Console.WriteLine("It's a tie!");
            Console.WriteLine("Score: {0}", firstPlayerScore);
        }
        else if (secondPlayerScore > firstPlayerScore)
        {
            Console.WriteLine("Second player wins!");
            Console.WriteLine("Score: {0}", secondPlayerScore);
            Console.WriteLine("Games won: {0}", secondPlayerGamesWon);
        }
        else if (firstPlayerScore > secondPlayerScore)
        {
            Console.WriteLine("First player wins!");
            Console.WriteLine("Score: {0}", firstPlayerScore);
            Console.WriteLine("Games won: {0}", firstPlayerGamesWon);
        }
    }
}