1                               
                                                                             
                                                                             
                                                                             
                                             2                               
                                                                             
                                                      2-5                    
                                                                             
                                                                             
                                                                             
                                             5                               
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                             3                               
                                                                             
                                                                             
                                                                             
                                                                          4-0
                                             4                               
                                                                             
                                                      4-<>                   
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                      <>-6                   
                                                                             
                                                                             
                                                                             
                                             6