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