#include <fstream>
#include <map>
using namespace std;
ifstream in ("elmaj.in");
ofstream out ("elmaj.out");

int main()
{
    int n,i,m=0,x;
    map<int,int> f;
    f[0]=-1;
    in>>n;
    for(i=0;i<n;i++)
    {
        in>>x;
        f[x]++;
        if(f[x]>f[m])
            m=x;
    }
    if(f[m]>n/2)
        out<<m<<' '<<f[m]<<"\n";
    else
        out<<"-1\n";
    return 0;
}