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#include <fstream>
#define DMAX 1000001
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
long long int a[DMAX],el;
int n,cate;
int main()
{ int i;
fin>>n;
for(i=1;i<=n;i++)
fin>>a[i];
el=a[1];cate=1;
for(i=2;i<=n;i++)
if(a[i]==el)
cate++;
else
{
cate--;
if(cate==0)
el=a[i],cate=1;
}
cate=0;
for(i=1;i<=n;i++)
if(a[i]==el)
cate++;
if(cate>n/2)
fout<<el<<' '<<cate;
else
fout<<-1;
return 0;
}