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

ifstream is("elmaj.in");
ofstream os("elmaj.out");

int n;
int a[100010];
int nr = -1;
int k = 0;

void Solve();

int main()
{
    is >> n;
    for(int i = 1; i <= n; ++i)
        is >> a[i];
    Solve();
    is.close();
    os.close();
    return 0;
}

void Solve()
{
    nr = a[1];
    k = 1;
    for(int i = 2; i <= n; ++i)
    {
        if( k == 0)
        {
            nr = a[i];
            k = 1;
            continue;
        }
        if(a[i] == nr)
            k++;
        else
            k--;
    }
    int cnt = 0;
    for(int i = 1; i <= n; ++i)
        {
            if(a[i] == nr)
                cnt++;
        }
    if(cnt >= (n/2))
        os << nr << ' ' << cnt;
    else
        os << "-1";
    return;
}