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  1. or download this
    $ perl -we 'print "$_\n" for < a b c >;'
    a
    b
    c
    
  2. or download this
    my $array_ref = [< 1 2 3 4 5 >];
    
  3. or download this
    use Data::Dump < pp >;
    
  4. or download this
    $ perl -we 'use Data::Dump < pp >; $x="foo"; pp <a 2 $x b>;'
    ("a", 2, "foo", "b")