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