#include <iostream>
#include <fstream>

using namespace std;

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

int v[101];
int n,contor,numar;
int main()
{
    in>>n;
    numar=-1;
    for (int i=1;i<=n;++i)
        in>>v[i];
    for (int i=1;i<=n;++i)
    {
        if (contor==0)
        {
            numar=v[i];
            contor=1;
        }
        else if (v[i]==numar)
            ++contor;
        else
            --contor;
    }
    if (numar=-1)
        out<<-1;
    contor=0;
    for (int i=1;i<=n;++i)
        if (v[i]==numar)
            ++contor;
    if (contor>n/2)
        out<<numar<<" "<<contor;
    else
        out<<-1;
    return 0;
}