Valideringskod
   *     *     *    ****   *******   *****   
  **     *     *   *          *     *     *  
 * *     *     *  *           *     *     *  
   *     *  *  *  ******      *      ******  
   *     * * * *  *     *     *           *  
   *     **   **  *     *     *          *   
*******  *     *   *****   *******   ****