#include <iostream>
#include <fstream>

using namespace std;

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

int v[1000000];

int main()
{
    int n, cnt(1), nr;
    in >> n >> v[0];
    nr = v[0];
    for (int i = 1; i < n; i++)
    {
        in >> v[i];
        if (v[i] == nr)
            cnt++;
        else cnt--;
        if (cnt == 0)
        {
            nr = v[i];
            cnt = 1;
        }
    }
    cnt = 0;
    for (int i = 1; i <= n; i++)
    {
        if (v[i] == nr)
            cnt++;
    }
    if (cnt > n / 2)
        out << nr << ' ' << cnt;
    else out << '-1';
    return 0;
}