 15              
                            
                                        3D ture
                            
                                        15              
                            
                                        3D ture
                            
                     
                                                 19              
                            
                                        3D ture
                            
                                        19              
                            
                                        3D ture
                            
                     
                                                 14
                            
                                        14              
                            
                            
                     
                                                 20
                            
                                        20              
                            
                            
                     
                                                 5
                            
                                        5               
                            
                            
                    