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  1. or download this
    END { kill 'INT', $$ }
    sub DESTROY { print "@{$_[0]}\n"; exit(14); }
    my $a = bless [1];
    my $b = bless [2, $a];
    
  2. or download this
    sub DESTROY { print "@{$_[0]}\n"; exit(14); }
    my $a = bless [1];
    my $b = bless [2, $a];
    my $c = bless [3, $b];
    
  3. or download this
    3 main=ARRAY(0x80f00c4)
    1
    
  4. or download this
    my $cleaning_up;
    sub DESTROY {
    ...
    my $a = bless [1];
    my $b = bless [2, $a];
    my $c = bless [3, $b];
    
  5. or download this
    DESTROY 3 main=ARRAY(0x80f00c4)
    DESTROY 2 main=ARRAY(0x80f01b4)
    DESTROY 1
    CLEAN 1
    
  6. or download this
    use POSIX;
    {
    ...
            $? = 0x80 + $i;
        }
    }