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#include <fstream>
using namespace std;
ifstream fin ("elmaj.in");
ofstream fout ("elmaj.out");
int n,i,nr,x;
int v[1000005];
int main()
{
fin>>n;
for (i=1; i<=n; i++)
{
fin>>v[i];
if (nr==0)
{x=v[i];
nr=1;}
else
{if (v[i]==x)
nr++;
else
nr--;}
}
if (nr<=0)
fout<<-1;
else
{
nr=0;
for (i=1; i<=n; i++)
if (v[i]==x)
nr++;
fout<<x<<' '<<nr;
}
return 0;
}