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

int main() {
  int n;
  cin >> n;
  map<string, int> mp;
  for (int i = 0; i < n; i++){
    string s;
    cin >> s;
    mp[s]++;
  }
  int a = 0;
  for (auto p : mp) a = max(p.second, a);
  for (auto p : mp){
    if (p.second != a) continue;
    else cout << p.first << endl;
  }
}
