for( $_ ='YtaohrPr akre nte elhce.'; ($i+2)**-1>  2/length; ++$i )
{ @a = split  /(.)./;
  @b = split /.(.)/ ; print ( ( $_ = join '', @a, @b ), "\n" );  }

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In reply to my best try obfuscated one by kprasanna_79

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