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

signed main() {
  ios::sync_with_stdio(false);

  int N;
  cin >> N;

  vector<string> S(N);
  for (int i = 0; i < N; ++i) cin >> S[i];

  map<int, int> cnt;
  for (int i = 0; i < N; ++i) {
    ++cnt[count(S[i].begin(), S[i].end(), '^')];
  }

  map<int, int> cnt2;
  for (auto it = cnt.begin(); it != cnt.end(); ++it) {
    cnt2[it->second] = it->first;
  }

  cout << cnt2.rbegin()->second << endl;

  return 0;
}