package A;

sub new {
  my $class = shift;
  print 'Hello from ' . $class . "\n";
  return bless {}, $class;
}

sub DESTROY {
  my $self = shift;
  print "A::DESTROY called from " . ref($self) . "\n";
}

package B;

our @ISA = qw( A );

sub DESTROY {
  my $self = shift;
  print "B::DESTROY called from " . ref($self) . "\n";
  return $self->SUPER::DESTROY;
}

package main;

my $this = A->new();
my $that = B->new();