#include <fstream>
#include <map>
#define dim 1000001

using namespace std;

int n,k,a[dim];

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

    map<int,int> h;

    cin>>n;
    k = n/2 + 1;
    for (int i=0;i<n;i++)
    {
        cin>>a[i];
        //retrieve hash
        if (h[a[i]])
        {
            h[a[i]]++;
        }
        else
        {
            h[a[i]] = 1;
        }
    }

    bool done = false;
    for (int i=0;i<n;i++)
    {
        if (h[a[i]] >= k)
        {
            cout<<a[i]<<" "<<h[a[i]]<<endl;
            h[a[i]] = 0; //remove it
            done = true;
            break;
        }
    }
    if (done)
        cout<<-1<<endl;
    return 0;
}