#include <bits/stdc++.h>
using namespace std;
ifstream fin ("elmaj.in");
ofstream fout ("elmaj.out");
int n,v[1000002],nr;

int main()
{
    fin>>n;
    for(int i=1;i<=n;++i)
        fin>>v[i];
    int p=v[1],no=1;
    for(int i=2;i<=n;++i){
        if(!no){
            no++;
            p=v[i];
        }
        else if(p==v[i]){
            no++;
        }
        else
            no--;
    }
    for(int i=1;i<=n;++i)
        if(v[i]==p)nr++;
    if(n/2+1<=nr)fout<<p<<' '<<nr<<endl;
    else fout<<-1<<endl;
    return 0;
}