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BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

        System.out.print("введите количество элементов: ");
        int num = Integer.parseInt(reader.readLine());
        int count = 1;
        int tmp = count;

        ArrayList<Integer> list = new ArrayList<>();
        for (int i = 0; i < num; i++) {
            list.add(i,Integer.parseInt(reader.readLine()));
        }
        for (int i = 1; i < list.size() ; i++) {
            if (list.get(i - 1 ) == list.get(i)) {
                tmp++;
            } else {
                if (tmp > count) {
                    count = tmp;
                }
                tmp = 1;
            }
        }
        System.out.println(count);

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