#include <iostream>
#include <map>
#include <fstream>
using namespace std;

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

map <int,long int> schema;

int main()
{
    int n;
    in>>n;
    for(int i=1;i<=n;i++)
    {
        int x;
        long int y;
        in>>x;
        schema[x]++;
    }
    int max_value=0;
    int max_count=0;
    map <int,long int> ::iterator itr;
    for(itr = schema.begin(); itr!=schema.end();itr++)
    {
        int itr_value=itr->first;
        long int itr_count=itr->second;
        if(itr_count>max_value)
        {
            max_value=itr_value;
            max_count=itr_count;
        }

    }
    if(max_count>n/2)
        out<<max_value<<" "<<max_count;
    else
        out<<-1;
}