public class Solution {

    public static void main(String[] args) throws IOException {
        List<Integer> list = new ArrayList<>();
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        for (int i = 0; i < 10; i++) {
            list.add(Integer.parseInt(reader.readLine()));
        }

        int count = 1;
        int count2 = 1;

        for (int i = 0; i < list.size(); i++) {
            if (list.get(i).equals(list.get(i+1))) {
                count++;
                continue;
            }
            else  {
                if (count2 < count) {
                    count2 = count;
                    count = 0;
            }
            else continue;
        }
    }
        System.out.println(count2);
    }
}