kkkkkkkk                                
                                                             k::::::k                                
                                                             k::::::k                                
                                                             k::::::k                                
 zzzzzzzzzzzzzzzzz     cccccccccccccccc     eeeeeeeeeeee      k:::::k    kkkkkkk xxxxxxx      xxxxxxx
 z:::::::::::::::z   cc:::::::::::::::c   ee::::::::::::ee    k:::::k   k:::::k   x:::::x    x:::::x 
 z::::::::::::::z   c:::::::::::::::::c  e::::::eeeee:::::ee  k:::::k  k:::::k     x:::::x  x:::::x  
 zzzzzzzz::::::z   c:::::::cccccc:::::c e::::::e     e:::::e  k:::::k k:::::k       x:::::xx:::::x   
       z::::::z    c::::::c     ccccccc e:::::::eeeee::::::e  k::::::k:::::k         x::::::::::x    
      z::::::z     c:::::c              e:::::::::::::::::e   k:::::::::::k           x::::::::x     
     z::::::z      c:::::c              e::::::eeeeeeeeeee    k:::::::::::k           x::::::::x     
    z::::::z       c::::::c     ccccccc e:::::::e             k::::::k:::::k         x::::::::::x    
   z::::::zzzzzzzz c:::::::cccccc:::::c e::::::::e           k::::::k k:::::k       x:::::xx:::::x   
  z::::::::::::::z  c:::::::::::::::::c  e::::::::eeeeeeee   k::::::k  k:::::k     x:::::x  x:::::x  
 z:::::::::::::::z   cc:::::::::::::::c   ee:::::::::::::e   k::::::k   k:::::k   x:::::x    x:::::x 
 zzzzzzzzzzzzzzzzz     cccccccccccccccc     eeeeeeeeeeeeee   kkkkkkkk    kkkkkkk xxxxxxx      xxxxxxx