dddddddd 
HHHHHHHHH     HHHHHHHHH                                     kkkkkkkk                                        d::::::d
H:::::::H     H:::::::H                                     k::::::k                                        d::::::d
H:::::::H     H:::::::H                                     k::::::k                                        d::::::d
HH::::::H     H::::::HH                                     k::::::k                                        d:::::d 
  H:::::H     H:::::H    aaaaaaaaaaaaa      cccccccccccccccc k:::::k    kkkkkkk eeeeeeeeeeee        ddddddddd:::::d 
  H:::::H     H:::::H    a::::::::::::a   cc:::::::::::::::c k:::::k   k:::::kee::::::::::::ee    dd::::::::::::::d 
  H::::::HHHHH::::::H    aaaaaaaaa:::::a c:::::::::::::::::c k:::::k  k:::::ke::::::eeeee:::::ee d::::::::::::::::d 
  H:::::::::::::::::H             a::::ac:::::::cccccc:::::c k:::::k k:::::ke::::::e     e:::::ed:::::::ddddd:::::d 
  H:::::::::::::::::H      aaaaaaa:::::ac::::::c     ccccccc k::::::k:::::k e:::::::eeeee::::::ed::::::d    d:::::d 
  H::::::HHHHH::::::H    aa::::::::::::ac:::::c              k:::::::::::k  e:::::::::::::::::e d:::::d     d:::::d 
  H:::::H     H:::::H   a::::aaaa::::::ac:::::c              k:::::::::::k  e::::::eeeeeeeeeee  d:::::d     d:::::d 
  H:::::H     H:::::H  a::::a    a:::::ac::::::c     ccccccc k::::::k:::::k e:::::::e           d:::::d     d:::::d 
HH::::::H     H::::::HHa::::a    a:::::ac:::::::cccccc:::::ck::::::k k:::::ke::::::::e          d::::::ddddd::::::dd
H:::::::H     H:::::::Ha:::::aaaa::::::a c:::::::::::::::::ck::::::k  k:::::ke::::::::eeeeeeee   d:::::::::::::::::d
H:::::::H     H:::::::H a::::::::::aa:::a cc:::::::::::::::ck::::::k   k:::::kee:::::::::::::e    d:::::::::ddd::::d
HHHHHHHHH     HHHHHHHHH  aaaaaaaaaa  aaaa   cccccccccccccccckkkkkkkk    kkkkkkk eeeeeeeeeeeeee     ddddddddd   ddddd