       
                                    1214  800                                                 1215                       1216                        1214 1222         
                                                                                                                                                                                                                                  400                                       
                                                                                                                                                                                                                 
                                                                                                                                                                                                                                                                                       
                                                                                                                                                                                                                                                                                                                                                      1950                                                                                                    
                                                                                                   
                    800             