# include <fstream>
using namespace std;
ifstream fin ("elmaj.in");
ofstream fout ("elmaj.out");
int v[1000000],n,i,aparitii,loc;
int main()
{
    fin>>n;
    for(i=0;i<n;i++)
    {
        fin>>v[i];
        if(!aparitii)
        {
            loc=v[i];
            aparitii++;
        }
        else
        {
            if(v[i]==loc)
            aparitii++;
            else
            aparitii--;
        }
    }
    aparitii=0;
    for(i=0;i<n;i++)
    {
        if(v[i]==loc)
        aparitii++;
    }
    if(aparitii>n/2)
    fout<<loc<<" "<<aparitii;
    else
    fout<<-1;
return 0;
}