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    @array = (
        ['a','b'],
...
        );

        print $array[1][0]; #result c;

    @array = (
        {
...
    );

    print $array[1]{c}; #result d;

    %hash = (
        "1" => ['a','b'],
...
);

  print $hash{1}[0]; result a

  %hash = (
    "1" => {
...
      );

  print $hash{2}{d}; #result e