#include <iostream>

int main() {
  int last_now, now, amount = 0, amount_now = 0;
  std::cin >> now;
    if (now > 0) {
    amount = amount_now = 1;
  }
  while (now != 0) {
      last_now = now;
      std::cin >> now;
      if (now == last_now) {
          amount_now += 1;
          if (amount_now > amount) {
              amount = amount_now;
          }
      } else {
              amount_now = 1;
      }

  }
    std::cout << amount;
}