#include <iostream>
#include <fstream>
#include <vector>
using namespace std;

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

int n, nrAp, elMaj, cnt;
vector <int> v;

int main()
{
    f >> n;
    v = vector <int> (n + 1);
    for(int i = 1; i <= n; ++i)
        f >> v[i];
    for(int i = 1; i <= n; ++i) {
        if(nrAp == 0) {
            elMaj = v[i];
            nrAp = 1;
        }
        else if(v[i] == elMaj)
            nrAp ++;
        else nrAp --;
    }
    for(int i = 1; i <= n; ++i)
        if(v[i] == elMaj)
            ++cnt;
    if(cnt >= (n / 2) + 1)
        g << elMaj << " " << cnt;
    else g << -1;

}