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