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

int n, cand, k, nr, a[1000001];

int main ()
{
    f >> n;

    cand=-1;
    k=0;
    for (int i=1; i<=n; i++)
    {
        f >> a[i];
        if (k==0)
        {
            cand=a[i];
            k=1;
        }
        else if (a[i]==cand) k++;
        else k--;
    }
    if (cand==-1) g << -1;
    else {
        nr=0;
        for (int i=1; i<=n; i++)
            if (a[i]==cand) nr++;

        if (nr>n/2)
            g << cand << " " << nr;
        else g << -1;
    }
    return 0;
}