#include <fstream>
#include <algorithm>

using namespace std;

ifstream cin("elmaj.in");
ofstream cout("elmaj.out");

long long x, n, freq[100001], maxim, nmax, nr;

int main()
{
    cin >> n;
    for(int i = 1; i <= n; i++)
    {
        cin >> x;
        if(x > nmax)
            nmax = x;
        freq[x]++;
    }
    for(int i = 0; i <= nmax; i++)
    {
        if(freq[i] > maxim)
            maxim = i, nr = freq[i];
    }
    if(nr >= n / 2 + 1)
        cout << maxim << " " << nr;
    else
        cout << -1;
    return 0;
}