06. Winning Ticket java

import java.util.Scanner;

public class WinningTicket {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);


        String input = scanner.nextLine();
        input = input.replace(" ", "");
        String[] ticket = input.split(",");

        for (int i = 0; i < ticket.length; i++) {
            if (ticket[i].length() != 20) {
                System.out.println("invalid ticket");
            } else {
                String left = ticket[i].substring(0, 10);
                String right = ticket[i].substring(10);
                String winingSymbol = findSymbol(left);
                if (winingSymbol == null) {
                    System.out.printf("ticket \"%s\" - no match%n", ticket[i]);
                    continue;
                }
                int bestSequence = findMaxSequence(left, winingSymbol.charAt(0));
                StringBuilder bestCombination = new StringBuilder();
                for (int j = 0; j < bestSequence; j++) {
                    bestCombination.append(winingSymbol);
                }

                if (left.contains(bestCombination) && right.contains(bestCombination) && bestCombination.length() != 10) {
                    System.out.printf("ticket \"%s\" - %d%s%n", ticket[i], bestSequence, winingSymbol);
                } else if (left.contains(bestCombination) && right.contains(bestCombination)) {
                    System.out.printf("ticket \"%s\" - %d%s Jackpot!%n", ticket[i], bestSequence, winingSymbol);

                }else {
                    System.out.printf("ticket \"%s\" - no match%n", ticket[i]);
                }
            }

        }
    }

    static String findSymbol(String input) {
        int countAT = 0;
        int countNumberSign = 0;
        int countDolar = 0;
        int countCaret = 0;

        for (int i = 0; i < input.length(); i++) {
            if (input.charAt(i) == '@') {
                countAT++;
            } else if (input.charAt(i) == '#') {
                countNumberSign++;
            } else if (input.charAt(i) == '$') {
                countDolar++;
            } else if (input.charAt(i) == '^') {
                countCaret++;
            }
        }

        if (countAT >= 6) {
            return "@";
        } else if (countNumberSign >= 6) {
            return "#";
        } else if (countDolar >= 6) {
            return "$";
        } else if (countCaret >= 6) {
            return "^";
        }
        return null;
    }

    static int findMaxSequence(String ticket, char symbol) {
        int maxSequence = 1;
        int count = 1;
        for (int i = 1; i < ticket.length(); i++) {
            char currentChar = ticket.charAt(i);
            char previousChar = ticket.charAt(i - 1);
            if (currentChar == symbol && currentChar == previousChar) {
                count++;
                if (count > maxSequence) {
                    maxSequence = count;
                }
            } else {
                count = 1;
            }
        }
        return maxSequence;
    }
}