加                                                                                         油                                                     油

        加    加    加    加    加   加   加   加          加    加    加    加    加                               油                       油    油    油    油    油     油   油

                                          加              加           加                            加                                                          油                    油                    油

                                      加                  加           加                            加                              油                       油                      油                   油

                                加                       加            加                            加                                  油                    油   油      油    油    油     油  油       

                        加                                加           加                            加                                           油          油                      油                   油         

                 加                       加            加           加                            加                                        油             油                      油                   油

     加                                                    加          加    加    加   加     加                                   油                   油    油   油    油      油    油   油