#include <iostream>
#include <fstream>

using namespace std;

#define MAXN 1000005

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

int n;
int a[MAXN];

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

    int s = 0, el;
    for (int i = 1; i <= n; i++) {
        if (s == 0) {
            s = 1;
            el = a[i];
        } else if (el == a[i]) {
            s++;
        } else {
            s--;
        }
    }

    s = 0;
    for (int i = 1; i <= n; i++) {
        if (a[i] == el) {
            s++;
        }
    }

    if (s <= n / 2) {
        g << -1 << endl;
    } else {
        g << el << ' ' << s << endl;
    }

    return 0;
}