#include <stdio.h>

#define MAXNUM 1000

int main(void) {
  int n;
  scanf("%d", &n);
  int maxlen[MAXNUM] = {};
  int count = 0;

  int prev, head;
  scanf("%d", &prev);
  for (int i = 1; i < n; i++) {
    scanf("%d", &head);
    if (head == prev) {
      maxlen[count]++;
    } else {
			prev = head;
			count++;
		}
  }

	int max = 1;
	for (int i = count; i >= 0; i--) {
		if (maxlen[i] + 1 > max) {
			max = maxlen[i] + 1;
		}
	}
	printf("%d", max);
  return 0;
}