#include <fstream>
#include <map>
#include <vector>

using namespace std;

ifstream cin("elmaj.in");
ofstream cout("elmaj.out");

int main(){
  int n;
  cin >> n;
  vector<int> v(n + 1);
  map<int, int> h;
  for(int i = 1; i <= n; i++){
    cin >> v[i];
    h[v[i]] += 1;
  }
  int Max = -1;
  for(int i = 1; i <= n; i++){
    if(h[v[i]] > h[Max])
      Max = v[i];
  }
  if(h[Max] >= n / 2 + 1)
    cout << Max << ' ' << h[Max] << '\n';
  else
    cout << "-1" << '\n';
}