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*******************************************************************************/

#include <fstream>
using namespace std;
int v[1000001];
int main()
{
    ifstream cin ("elmaj.in");
    ofstream cout("elmaj.out");
    int n,cnt,candidate;
    cin >> n;
    for(int i=0;i<n;i++)
        cin >> v[i];
    cnt=0;
    candidate=-1;
    for(int i=0;i<n;i++){
        if(cnt==0){
            candidate=v[i];
            cnt=1;
        }
        else if(v[i]==candidate)
            cnt++;
        else
            cnt--;
    }
    cnt=0;
    for(int i=0;i<n;i++){
        if(v[i]==candidate)
            cnt++;
    }
    if(cnt>n/2)
        cout << candidate << " " << cnt;
    else
        cout << -1;
    return 0;
}