#include <fstream>
#define DIM 500001
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int apar[DIM],maxapar;
int main()
{
    int n,v[DIM],i,maj;
    f>>n;
    for(i=1;i<=n;++i){
        f>>v[i];
        apar[v[i]]++;
        if(apar[v[i]]>maxapar){
                maxapar=apar[v[i]];
                maj=v[i];
        }
    }
    if(maxapar<n/2+1) g<<-1;
    else{
        g<<maj<<' '<<maxapar;
    }
    f.close();
    g.close();
    return 0;
}