#include <fstream>
using namespace std;
int n, i, v[1000001], crt, c, nr;
int main()
{
    ifstream fin ("elmaj.in");
    ofstream fout ("elmaj.out");
    fin>>n;
    for (i=1; i<=n; i++)
    {
        fin>>v[i];
        if (c==0)
        {
            crt=v[i];
            c++;
        }
        else
        {
            if (v[i]==crt)
                c++;
            else
                c--;
        }
    }
    for (i=1; i<=n; i++)
        if (v[i]==crt)
            nr++;
    if (nr>n/2)
        fout<<crt<<" "<<nr;
    else
        fout<<-1;

}