#include <iostream>
#include <fstream>

using namespace std;

long long v[1000001],mare,nr,i,n,x;
ifstream in("elmaj.in");
ofstream out("elmaj.out");

int main()
{
    in>>n;
    for(i=1; i<=n; ++i) {
        in>>x;
        ++v[x];
        if(v[x]>mare) {
            mare=v[x];
            nr=x;
        }
    }

    if(mare>=(n/2)+1) {
        out<<nr<<" "<<mare;
        return 0;
    }
    else
        out<<-1;

    return 0;
}