// solutie de 100 de puncte

#include <fstream>
#include <iostream>

using namespace std;

int t, n;
int varcolac;
int varcolaci[16];

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

int main()
{
    t=1;
    int i, j;
    int x, aparitii;
    for(i=1; i<=t; i++)
    {
        fin>>n;
        aparitii=1;
        fin>>varcolac;
        for(j=2; j<=n; j++)
        {
            fin>>x;
            if(x==varcolac)
                aparitii++;
            else
                aparitii--;
            if(aparitii==0)
            {
                varcolac=x;
                aparitii=1;
            }
        }
        varcolaci[i]=varcolac;
    }
    
            if(aparitii>=n/2+1)
            fout<<varcolaci[i]<<' '<<aparitii;
        else
            fout<<"-1";
return 0;
}