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  1. or download this
        my $first = @{$ref_to_array}[0]; # prefix
  2. or download this
    my $first = ${$ref_to_array}[0]; # prefix
  3. or download this
        # the easy way
    $LoL[0]->[0]->[1]   = 'It's a bird, it's a plane, it's...';
    # the shortcut
    $LoL[0]->[0][2]     = 'Superman!';
  4. or download this
    # the full shortcut
$LoL[0][0][2]     = 'Superman!';