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#include <fstream>
using namespace std;
ifstream fin ("elmaj.in");
ofstream fout ("elmaj.out");
int v,n,i,cnt=1,m=-1;
int main()
{
    fin>>n; // Varianta fara vector
    for (i=1;i<=n;i++)
    {
        fin>>v;
        if (v==m)
        {
            cnt++;
        }
        else
        {
            cnt--;
        }
        if (cnt==0)
        {
            m=v;
            cnt=1;
        }
    
    }
    fin.seekg(0); // Functia seteaza pozitia in fisierul de intrare
    cnt=0;
    fin>>n;
    for (i=1;i<=n;i++)
    {
        fin>>v;
        if (m==v)
        {
            cnt++;
        }
    }
    if (cnt>n/2)
    {
        fout<<m<<" "<<cnt;
    }
    else
    {
        fout<<-1;
    }
    return 0;
}