 5
                            
                                        5               
                            
                            
                     
                                                 5
                            
                                        5               
                            
                            
                     
                                                 5
                            
                                        5               
                            
                            
                     
                                                 4
                            
                                        4               
                            
                            
                     
                                                 17              
                            
                                        3D ture
                            
                                        17              
                            
                                        3D ture
                            
                    