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  1. or download this
    #!/usr/bin/perl
    use strict;
    use warnings;
    
    print scalar reverse "\noäu";
    
  2. or download this
    #!/usr/bin/perl
    use strict;
    ...
    print scalar reverse "\noäu";
    __END__
    uäo
    
  3. or download this
    #!/usr/bin/perl
    use strict;
    ...
    \N[LATIN CAPITAL LETTER A]\N[COMBINING DIAERESIS]
    \N[COMBINING DIAERESIS]\N[LATIN CAPITAL LETTER A]
    ÖA
    
  4. or download this
    #!/usr/bin/perl
    use strict;
    ...
    \N[LATIN CAPITAL LETTER A]\N[COMBINING DIAERESIS]\N[LATIN CAPITAL LETT
    +ER O]
    \N[LATIN CAPITAL LETTER O]\N[LATIN CAPITAL LETTER A]\N[COMBINING DIAER
    +ESIS]
    OÄ