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