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