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#include <fstream>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int i,n,nr,nrr,k,a[1000001];
int main()
{
f>>n;
for (i=1;i<=n;i++)
f>>a[i];
for (i=1;i<=n;i++)
{
if (k==0)
{
k=1;
nr=a[i];
}
else
if (nr==a[i])
k++;
else
k--;
}
if (k<=0)
g<<-1;
else
{
g<<nr<<" ";
for (i=1;i<=n;i++)
if (a[i]==nr)
nrr++;
g<<nrr;
}
f.close();
g.close();
}