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