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