#include <iostream>
#include <fstream>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int v[1000000];
int main()
{
    int n, nr = 0, cand = -1;
    f >> n;
    for(int i = 0; i < n; i++)
    {
        f >> v[i];
        if(nr == 0)
        {
            cand = v[i];
            nr = 1;
        }
        else
            if(cand == v[i])
                nr++;
            else
                nr--;
    }
    if(nr > 0)
    {
        nr = 0;
        for(int i = 0; i < n; i++)
            if(v[i] == cand)
                nr++;
    }
    if(nr > n / 2)
        g << cand << ' '<<nr;
    else
        g << "-1";
    return 0;
}