#include <fstream>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
long long n,i,nr,v[1000001],j,c,cnt;
int main()
{
    f>>n;c=-1;
    for(i=1;i<=n;i++)
    {
        f>>v[i];
        if(nr==0)
        {
            nr++;
            c=v[i];
        }
        else
            if(c==v[i])
            nr++;
        else
            nr--;
    }
        for(i=1;i<=n;i++)
            if(v[i]==c)
                cnt++;
        if(cnt>n/2)
            g<<c<<" "<<cnt<<"\n";
        else
            g<<-1<<"\n";
    f.close();
    g.close();
    return 0;
}