R
                                 E
                               P 
                             U
                           S
                            U                                 
                             P     
                      HHHHHHHHRHHHHHHHHHH
                      HHHHHHHHHEHHHHHHHHH
                      HHHHHHHHHHMMMMMMMMM 
                      HHHHHHHHHHMAMMMMMMM
                      HHHHHHHHHHMMTMMMMMM
                      HHHHHHHHHHMMMIMMMMM
                      HHHHHHHHHHMMMMSMMMM
                      HHHHHHHHHHMMMMMMMMM
              .   +   HHHHHHHHHHMMMMMMMMM
               .    +          
                .     +        
                 .