1    7  26               60           512                                                   5 ~ 8       
       16                                                             
     2    7  26                  128                                                                 
     3    7  25               128                                                      
     4    7  25                    128                                        
     5    7  25                128                       
     6    7  25                                            
     7              64                            
     8  7  21 ~ 22                              256                                                      
                                         16   