#include <bits/stdc++.h>
using namespace std;
int main() {
  int i, n;
  string st;
  vector<string> v;
  map<string, int> mp;
  cin >> n;
  for (i = 0; i < n; i++) {
    cin >> st;
    if (mp[st] == 0) {
      v.push_back(st);
    }
    mp[st]++;
  }
  if (v.size() == 1)
    cout << v[0] << "\n";
  else {
    if (mp[v[0]] > mp[v[1]])
      cout << v[0];
    else
      cout << v[1] << "\n";
  }
  return 0;
}
