*             
                                                                      
    *                              *      *    *        **            
            ,,       ,   ,   ,          ,  ,   ,  +,                  
         *    *      *                                        *   *   
                       ,          ,        ,      ,,        ,     , ,*
   ** *        **  *     * *    *   *  *          * *  **          *, 
        ,   ,    ,  ,     ,,    ,   ,        ,            +  , ,      
                  **   *        * *               *   *        ** *  *
         ,     , ,    ,,,    ,    ,,      ,  ,,      ,            , , 
         *   **  *       *                       *      *   *      *  
*   , , ,      ,, + ,   ,     ,,  ,     ,  ,, , ,       ,    ,        
         ** *  *           *   **    * *          **   *   ***     *  
        ,        ,,  ,               ,, ,,   ,   , , ,     , ,,      *
*        *  * *  ***    ***    *   **  * **      *           ** **   *
        , , , ,         ,    ,         ≈    ,  ,      , +        ,  , 
 ,     ****   * *           *      * *                  *▓▓▓▓▓▓▓▓▓▓▓▓▓
 ,   , ,    ,,  ,  ,   ,    ,  ,  ,, ,  ,          ,    ,........S2..▓
▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓.▓
▓.........'.....)).).))).[.[[[[[[.....(....)..(....))......'.........▓
▓.▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓
▓.......................[............................................▓
▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓.▓
▓)............)))).....)..).)).))[)))....))))))∩)∩.∩.∩.....'.........▓
▓)▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓
▓)............)........(.............................................▓
▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓.▓
▓.......'.............'.........'.........'...........('....[...'....▓
▓.▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓
▓....................................................................▓
▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓.▓
▓<.......).....'.....'__________________'..|).....'......)......'....▓
▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓