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#include<fstream>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int n,i,v[1000005],cd,k,nr;
int main()
{
fin>>n;
for(i=1; i<=n; i++)
fin>>v[i];
cd=1;
cd=v[1];
k=1;
for(i=2; i<=n; i++)
{
if(v[i]==cd)
{
k=k+1;
}
else
{
k=k-1;
if(k<0)
{
cd=v[i];
k=1;
}
}
}
if(k>0)
{
nr=0;
for(i=1; i<=n; i++)
{
if(cd==v[i])
nr=nr+1;
}
fout<<cd<<" "<<nr;
}
else
fout<<-1;
fin.close();
fout.close();
return 0;
}