#include <bits/stdc++.h>

using namespace std;
ifstream in("elmaj.in");
ofstream out("elmaj.out");
int n,i,ap,cand;
int v[100001];
int main()
{
    in>>n;
    for(i=1;i<=n;i++)
        in>>v[i];
        cand=v[1];
        ap=1;
    for(i=2;i<=n;i++){
        if(v[i]==cand) ap++;
        else ap--;
       //cout<<cand<<" "<<ap<<" ";
        if(ap==0){
            cand=v[i];
            ap=1;
        }
    }
        ap=0;
        for(i=1;i<=n;i++){
            if(v[i]==cand) ap++;
        }
        if(ap>=n/2+1) out<<cand<<" "<<ap;
        else out<<-1;

    return 0;
}