#include <bits/stdc++.h>
#pragma GCC optimize ("Ofast")

using namespace std;

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

const int MAX_N = 1e6 + 5;
int n, v[MAX_N];
int pretender, frequency = 0;

int main (){
    ios_base::sync_with_stdio(false);
    fin.tie(nullptr), fout.tie(nullptr);

    fin>>n;
    for(int i=1; i<=n; i++){
        fin>>v[i];
        if(frequency == 0){
            pretender = v[i];
            frequency = 1;
        }else{
            if(pretender == v[i])
                frequency++;
            else
                frequency--;
        }
    }

    frequency = 0;
    for(int i=1; i<=n; i++)
        frequency += (pretender == v[i]);

    if(frequency >= n/2+1)
        fout<<pretender<<" "<<frequency;
    else
        fout<<-1;
    return 0;
}