#include <fstream>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
long long n,v[1000001],x=-1,aux=1,ap,i;
int main()
{
    fin>>n;
    for(i=1;i<=n;i++){ fin>>v[i];
        if(v[i]!=x)aux--;
        if(aux==0){x=v[i]; aux=1;}
    }

    for(i=1;i<=n;i++) if(v[i]==x) ap++;
    if(ap>=n/2+1)fout<<x<<" "<<ap;
    else fout<<-1;

    return 0;
}