 
                
             1
                                                                                                                1
                         
                
             1
                                                                                                                1
                         
                
             1
                                                                                                                1
                         
                
             1
                                                                                                                1
                         
                
             
                                                                                                                 2
                                                                                                                2
                         
                
             
                
             2
                                                                                                                                                                        2
                         
                
             
                                                                                                                 3
                                                                                                                                                                        3
                         
                
             1
                                                                                                                1