#include <bits/stdc++.h>
using namespace std;
int v[1000005], nr, c, i, n, ct;
int main()
{
    ifstream f("elmaj.in");
    ofstream g("elmaj.out");
    f >> n;
    for(i = 1; i <= n; i ++)
    {
        f >> v[i];
        if(nr == 0) c = v[i], nr = 1;
        else if(v[i] == c) nr ++;
        else nr --;
    }
    for(i = 1; i <= n; i ++)
        if(v[i] == c) ct ++;
    if(ct >= n / 2 + 1) g << c << " " << ct;
    else g << -1;
    return 0;
}