3

 

1

                                                                                         A-

3

                                                                                                                                           B-

6

                                                                                        C-

2

                                                                                       C1-

2

                                                                                                                                          D-

5

                                                                                                                                          E-

3

                                                                                           F-

 

6

                                                                                                                                           F-