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