#include <bits/stdc++.h>
using namespace std;

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

int main() {
    int n; fin >> n;
    vector<int> v(n);
    fin >> v[0];
    int cand = v[0], frq = 1;
    for (int i = 1; i < n; i++) {
        fin >> v[i];
        if (v[i] == cand)
            frq++;
        else if (--frq == 0) {
            cand = v[i];
            frq = 1;
        }
    }

    frq = 0;
    for (int i = 0; i < n; i++)
        if (v[i] == cand)
            frq++;
    if (frq >= n / 2 + 1)
        fout << cand << ' ' << frq << '\n';
    else
        fout << "-1\n";

    fout.close();
    return 0;
}