 
                
             1
                                                                                                                1
                         
                
             1
                                                                                                                1
                         
                
             1
                                                                                                                1
                         
                
             1
                                                                                                                1
                         
                
             1
                                                                                                                1
                         
                
             2
                                                                                                                                                                        2
                         
                
             1
                                                                                                                1
                         
                
             2
                                                                                                                                                                        2