#include<cstdio>
#include<vector>
using namespace std;
#define NMAX 1000005

vector<int> a;
int n;
int main()
{
	int x,nr=1,maj;
	freopen("elmaj.in","r",stdin);
	freopen("elmaj.out","w",stdout);
	scanf("%d %d",&n,&x);

	maj=x;
	a.push_back(x);
	for(int i=0;i<n;++i)
	{
		scanf("%d",&x);a.push_back(x);
		if(x==maj)nr++;
		else
			if(nr>0)nr--;
			else
			{
				maj=x;nr=1;
			}
			
	}
	
	nr=0;
	for(int i=0;i<n;i++)
		if(a[i]==maj)nr++;
	
	if(nr>n/2)printf("%d %d\n",maj,nr);
	else printf("-1\n");
	
	return 0;
}