#include <fstream>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int n,v[200000001],sol,x;
int main()
{
    fin>>n;
    for(int i=1;i<=n;i++)
    {
        fin>>x;
        v[x]++;
        if(v[x]>v[sol])
        {
            sol=x;
        }
    }
    if(v[sol]>=n/2+1)
        fout<<sol<<' '<<v[sol];
    else
        fout<<-1;
    return 0;
}