public class Solution {
    public static void main(String[] args) throws IOException {
        Scanner read = new Scanner(System.in);
        List<Integer> numbers = new ArrayList<Integer>();
        for (int i = 0; i<10; i++) {
            numbers.add(read.nextInt());
        }
        int length = 0;
        int tmp = 0;
        for (int i = 0; i<numbers.size()-1; i++) {
            if (numbers.get(i).equals(numbers.get(i+1))) {length++;}
            else tmp = 1;
            if (tmp<length) {tmp = length;}

        }
        System.out.println(tmp);
    }
}