bbbbbbbb                              
                      hhhhhhh              kkkkkkkk            b::::::b                         jjjj 
                      h:::::h              k::::::k            b::::::b                        j::::j
                      h:::::h              k::::::k            b::::::b                         jjjj 
                      h:::::h              k::::::k             b:::::b                              
 xxxxxxx      xxxxxxx  h::::h hhhhh         k:::::k    kkkkkkk  b:::::bbbbbbbbb               jjjjjjj
  x:::::x    x:::::x   h::::hh:::::hhh      k:::::k   k:::::k   b::::::::::::::bb             j:::::j
   x:::::x  x:::::x    h::::::::::::::hh    k:::::k  k:::::k    b::::::::::::::::b             j::::j
    x:::::xx:::::x     h:::::::hhh::::::h   k:::::k k:::::k     b:::::bbbbb:::::::b            j::::j
     x::::::::::x      h::::::h   h::::::h  k::::::k:::::k      b:::::b    b::::::b            j::::j
      x::::::::x       h:::::h     h:::::h  k:::::::::::k       b:::::b     b:::::b            j::::j
      x::::::::x       h:::::h     h:::::h  k:::::::::::k       b:::::b     b:::::b            j::::j
     x::::::::::x      h:::::h     h:::::h  k::::::k:::::k      b:::::b     b:::::b            j::::j
    x:::::xx:::::x     h:::::h     h:::::h k::::::k k:::::k     b:::::bbbbbb::::::b            j::::j
   x:::::x  x:::::x    h:::::h     h:::::h k::::::k  k:::::k    b::::::::::::::::b             j::::j
  x:::::x    x:::::x   h:::::h     h:::::h k::::::k   k:::::k   b:::::::::::::::b              j::::j
 xxxxxxx      xxxxxxx  hhhhhhh     hhhhhhh kkkkkkkk    kkkkkkk  bbbbbbbbbbbbbbbb               j::::j
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                                                                                       jjj::::::jjj  
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