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