#include <bits/stdc++.h>
using namespace std;

int main() {
  int N;
  cin >> N;
  vector<int> V(1001);
  string S;
  int ma = 0;
  while (cin >> S) {
    int tmp = count(S.begin(), S.end(), '^');
    V.at(tmp)++, ma = max(ma, V.at(tmp));
  }
  for (int i = 1000; i >= 0; i--)
    if (V.at(i) == ma) return cout << i << "\n", 0;
}