           _MongolBuh.com

           :                    
 512                                          64                                 64                512  256   
     64  32       256
 128         32   16          128  64             16  8  
    64  32           8    4       32  16           4    2          16   8               
           
                                
   1.                                               
2.              
        
3.             8  16           1   2   2   4   4   8               
4.                                              