 5
                            
                                        5               
                            
                            
                     
                                                 18
                            
                                        18              
                            
                            
                     
                                                 12
                            
                                        12              
                            
                            
                     
                                                 22
                            
                                        22              
                            
                            
                     
                                                 8               
                            
                                        3D ture
                            
                                        8               
                            
                                        3D ture
                            
                     
                                                 4
                            
                                        4               
                            
                            
                    