#include <fstream>

using namespace std;

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

int v[1000000];

int main()
{
    int n;
    f >>n;

    int prob, cnt = 1;
    f >> v[0];
    prob = v[0];
    for(int i = 1; i < n; i++){
        f >> v[i];
        if(v[i] == prob) cnt ++;
        else {
            cnt --;
            if(cnt == 0){
                prob = v[i];
                cnt ++;
            }
        }
    }

    cnt = 0;
    for(int i = 0; i < n; i++){
        if(v[i] == prob) cnt ++;
    }
    if(cnt > n/2) g << prob << " " << cnt;
    else g << -1;
    return 0;
}