#include <fstream>

using namespace std;

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

const int NMAX = 1000010;

int n, a[NMAX], cnt, x;

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