#include <fstream>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int v[1000010],n,i,q[99999999],Max1,Max,u;
int main()
{
    f>>n;
    for(i=1;i<=n;++i)
    {
        f>>v[i];
        if(v[i]>Max)
        {
            Max=v[i];
        }
    }
    Max1=n/2+1;
    for(i=1;i<=n;++i)
    {
        q[v[i]]++;
    }
    u=0;
    for(i=1;i<=Max;++i)
    {
        if(q[i]>=Max1)
        {
            u=i;
        }
    }
    if(u==0)
    {
        g<<-1;
    }
    else
        g<<u<<" "<<Max1;
    return 0;
}