#include<fstream>
#include<algorithm>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int n, i, v[1000001], k, maxi, j;
int main()
{
	f>>n;
	for(i=1;i<=n;i++)
	{
		f>>v[i];
	}
    for(i=1;i<=n;i++)
    {
		k=0;
		for(j=1;j<=n;j++)
		{
			if(v[i]==v[j])k++;
		}
		if(k>n/2)
		{
			g<<v[i]<<" "<<k;
			break;
		}
	}
	if(k<n/2+1)g<<-1;
	f.close();
	g.close();
	return 0;
}