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