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

int main(){
    map <int, int> mp;
    int cnt = 0, N, i, j, max = 0, i_cnt;
    string str;

    cin >> N;

    for(i = 0; i < N; i++){
        cin >> str;
        
        for(j = 0; j < str.size(); j++){
            if(str[j] == '^')   cnt++;
        }

        mp[cnt]++;
        cnt = 0;
    }

    for(auto itr = mp.begin(); itr != mp.end(); itr++){
        if(max <= itr->second){
            max = itr->second;
            i_cnt = itr->first;
        }
    }

    cout << i_cnt << endl;

    return 0;
}