#include <fstream>

using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int n,i,v[1000001],nr,x,r;
int main()
{
    fin>>n;
    for(i=1;i<=n;i++)
    {
    fin>>x;
    v[x]++;
    if(v[x]>v[r])
        r=x;
    }
    if(v[r]>=n/2+1)
    fout<<r<<" "<<v[r];
    else
        fout<<-1;
    return 0;
}