#include <cstdio>

using namespace std;
int a[1000002],i,n,q,m;
int main()
{
    freopen("elmaj.in","r",stdin);
    freopen("elmaj.out","w",stdout);
    scanf("%d",&n);
    for(i=1;i<=n;i++)
    {
    	scanf("%d",&a[i]);
    	if(q==0)
		{
			q++;
			m=a[i];
		}
		else
		if(m!=a[i])
			q--;
		else
		if(m==a[i])
			q++;
    }
    q=0;
    for(i=1;i<=n;i++)
    if(m==a[i])
		q++;
	if(n/2+1<=q)
		printf("%d %d",m,q);
	else
		printf("-1");
    return 0;
}