#include <fstream>

using namespace std;
const int NMAX = 1000000;

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

int v[NMAX + 5];

int main()
{
    ios_base::sync_with_stdio(false);
    fin.tie(NULL);

    int n,i,can,ap;
    fin >> n;
    can = 0;
    ap = 1;
    for(i = 1; i <= n; i++)
    {
        fin >> v[i];
        if(v[i] != can)
            ap--;
        if(!ap)
            can = v[i], ap++;
    }
    ap = 0;
    for(i = 1; i <= n; i++)
        if(can == v[i])
            ap++;
    if(ap <= (n >> 1))
        fout << "-1";
    else
        fout << can << " " << ap;
    return 0;
}