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