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