#include <fstream>

#define maxn 10000001

using namespace std;

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

int v[maxn],wh,nr,k,n;

int main ()
{
    fin>>n;

    for (int i=1; i<=n; ++i)
    {
        fin>>v[i];

        if (k==0)
        {
            ++k;
            wh = v[i];
        }
        else
        {
            if (v[i]==wh)
            {
                k++;
            }
            else
            {
                k--;
            }
        }
    }

    for (int i=1; i<=n; ++i)
    {
        if (v[i]==wh)
        {
            ++nr;
        }
    }

    if (nr < n/2 +1)
    {
        fout<<-1;
    }
    else
    {
        fout<<wh<<" "<<nr;
    }
}