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

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

int n;
int a[1000001];

int main()
{
    fin >> n;
    for(int i = 0; i < n; ++i)
        fin >> a[i];
    int nr = 0;
    int cand = -1;
    for(int i = 0; i < n; ++i)
    {
        if(nr == 0)
        {
            nr = 1;
            cand = a[i];
        }
        else if(cand == a[i])
            nr++;
        else if(cand != a[i])
            nr--;
    }
    if(nr < 0)
    {
        fout << -1;
        return 0;
    }

    nr = 0;
    for(int i = 0; i < n; ++i)
        if(a[i] == cand)
            nr++;
    fout << cand << ' ' << nr;
    return 0;
}