 4
                            
                                        4               
                            
                            
                     
                                                 18              
                            
                                        3D ture
                            
                                        18              
                            
                                        3D ture
                            
                     
                                                 20
                            
                                        20              
                            
                            
                     
                                                 17
                            
                                        17              
                            
                            
                     
                                                 18
                            
                                        18              
                            
                            
                     
                                                 17
                            
                                        17              
                            
                            
                     
                                                 18
                            
                                        18              
                            
                            
                     
                                                 21
                            
                                        21              
                            
                            
                     
                                                 18
                            
                                        18              
                            
                            
                     
                                                 20
                            
                                        20              
                            
                            
                     
                                                 20
                            
                                        20              
                            
                            
                     
                                                 20
                            
                                        20              
                            
                            
                     
                                                 20
                            
                                        20              
                            
                            
                     
                                                 19
                            
                                        19              
                            
                            
                     
                                                 20              
                            
                                        3D ture
                            
                                        20              
                            
                                        3D ture
                            
                     
                                                 7
                            
                                        7               
                            
                            
                     
                                                 24              
                            
                                        3D ture
                            
                                        24              
                            
                                        3D ture
                            
                     
                                                 16
                            
                                        16              
                            
                            
                     
                                                 15
                            
                                        15              
                            
                            
                     
                                                 4
                            
                                        4               
                            
                            
                    