#include<fstream>
#include<algorithm>
using namespace std;
ifstream cin("elmaj.in");
ofstream cout("elmaj.out");
int n,v[1000005];
int main()
{
    cin>>n;
    for(int i=1;i<=n;i++)
        cin>>v[i];
    sort(v+1,v+n+1);
    int nr,i=1;
    while(i<=n)
    {
        nr=1;
        while(v[i]==v[i+1] && i<=n)
            {++i; ++nr;}
        if(nr>n/2)
        {
            cout<<v[i]<<' '<<nr;
            return 0;
        }
        ++i;
    }
    cout<<-1;
}