#include<fstream>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
long int n,v[1000005],i,t,k,u,m;
int main()
{
	f>>n;
	for(i=1;i<=n;i++)
		f>>v[i];
	sort(v+1,v+n+1);
	t=v[1];k=1;m=0;u=0;
	for(i=2;i<=n;i++)
	{
		if(v[i]==t)
			k++;
		else
		  {
			  if(k>m)
			{
				m=k;
			    u=t;
			}
			  t=v[i];
			k=1;
		}
	}
	if(k>m)
			{
				m=k;
			    u=t;
			}
	if(m>=n/2+1)
		g<<u<<" "<<m;
	else
		g<<"-1";
	return 0;
}