3                      3                3 

 

 3                                   3                                     3    

 

3                              3                                   3

3                                3                   3

 

3                                3                    3

 

3                            3                                 3

 

3                               3                          3

 

3                                    3                                3

 

 3                          3

3               3              3

 

3                              3                      3

 

3                                3