Stackable Ring

*******  *     *  *     *  *        ******   *        *******  
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   *       * *     *   *   *        *     *  *        *        
   *        *      *   *   *        ******   *        ****     
   *       * *      * *    *        *     *  *        *        
   *      *   *     * *    *        *     *  *        *        
*******  *     *     *     *******  ******   *******  *