#include <bits/stdc++.h>
using namespace std;
 
int main() {
	ios::sync_with_stdio(false);
	cin.tie(0); 
	
	map<int, int> mp;
	int n;
	cin >> n;
	while(n--) {
		string s;
		cin >> s;
		int cnt = 0;
		for(int i = 0; i < s.size(); i++) {
			if(s[i] == '^') cnt++;
		}
		mp[cnt]++;
	}
	int num = 0, mode;
	for(auto i : mp) {
		if(i.second >= num) {
			num = i.second;
			mode = i.first;
		}
	}
	cout << mode << endl;
	return 0;
}