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  1. or download this
    utf8::upgrade($s);
    lc($s)
    
  2. or download this
    use feature qw( unicode_strings );
    lc($s)
    
  3. or download this
    use Data::Dumper;
    local $Data::Dumper::Useqq = 1;
    print(Dumper($s));
    
  4. or download this
    use Devel::Peek;
    Dump($s);