#include <iostream>
#include <fstream>

using namespace std;

ifstream f ("elmaj.in");
ofstream g ("elmaj.out");

const int NMAX = 1000000;

int n;
int v[NMAX + 1];

int main() {
	f >> n;

	int candidat = 0;
	int k = 0;

	for (int i = 1; i <= n; i++) {
		f >> v[i];

		if (k == 0) candidat = v[i];
		if (v[i] == candidat) k++;
		else k--;
	}

	int aparitii = 0;
	for (int i = 1; i <= n; i++)
		if (v[i] == candidat) aparitii++;

	if (aparitii > n / 2) g << candidat << ' ' << aparitii;
	else g << -1;
	g << '\n';

	return 0;
}