 15
                            
                                        15              
                            
                            
                     
                                                 
                                                 4
                            
                                        4               
                            
                            
                     
                                                 14
                            
                                        14              
                            
                            
                     
                                                 16              
                            
                                        3D ture
                            
                                        16              
                            
                                        3D ture
                            
                     
                                                 2
                            
                                        2               
                            
                            
                     
                                                 25              
                            
                                        3D ture
                            
                                        25              
                            
                                        3D ture
                            
                     
                                                 20
                            
                                        20              
                            
                            
                     
                                                 10
                            
                                        10              
                            
                            
                     
                                                 17              
                            
                                        3D ture
                            
                                        17              
                            
                                        3D ture
                            
                    