rr                            rr                         
                          rr                             rrrrr                    
                           rr                               rrrrrrr               
                            rr                                   rrrr             
                             rr                                     rrrrrrr       
                              rrr                                     rrrrrrrrrr  
                               rrr                                                
                                rrr                                               
                                rrr                                               
                                 rrr                                              
                                  rrrrr                                            
                                   rrrr                                           
                                   rrr                                            
                                  rrr                                             
                                 rrr                                              
                                rr                                                
   LLL                         rr                                                 
  LLLLL                        rr                                                 
    LLLL                      rr                                                  
                             rr