#include <fstream>

using namespace std;

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

int n,x,candidat,k,i,nr,v[1000001];

int main()
{
    fin>>n;
    candidat = -1;
    k=0;
    for (i=1;i<=n;++i)
    {
        fin>>v[i];
        if (k==0)
        {
            candidat=v[i];
            k=1;
        }
        else
        {
            if (v[i] == candidat)
                k++;
            else
                k--;
        }
    }
    if (candidat < 0 )
        fout<<candidat;
    else
    {
        for (i=1;i<=n;i++)
        {
            if (v[i] == candidat)
                nr++;
        }
        if (nr > n/2)
            fout<<candidat<<" "<<nr;
        else
            fout<<"-1";
    }

    return 0;
}