#include<fstream>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
unsigned long n,v[1000001],i,x,k,y;
int main()
{
	x=v[1];
	k=1;
	for(i=2;i<=n;i++)
	{
		fin>>v[i];
		if(v[i]!=x)
		{
			k--;
			if(k==0)
			{
				x=v[i];
				k=1;
			}
		}
		else
		{
			k++;
		}
	}
	for(i=1;i<=n;i++)
	{
		if(v[i]==x)
			y++;
	}
	if(y>=n/2+1)
	{
		fout<<x<<" "<<k;
		return 0;
	}
	else
	{
		fout<<-1;
		return 0;
	}
	
}