Drop C-

||--------------------------------------------------------------|
||--------------------------------------------------------------|
||--------------------------------------------------------------|
||--------------------------------------------------------------|
||---------5h8-------------5h8-6h9------------------------------|
||-000-000-----000-000-000--------------------------------------|
   ... ...     ... ... ...
||--------------------------------------------------------------|
||--------------------------------------------------------------|
||--------------------------------------------------------------|
||------------------------------------------------7-7-8-8-8-8---|
||------------5h8----------5h8-6h9------------5h8-5-5-6-6-6-6---|
||-0000000000-----00000000---------0000000000-------------------|
   ..........     ........         ..........
||--------------------------------------------------------------|
||--------------------------------------------------------------|
||--------------------------------------------------------------|
||------------------------------------------------7-7-----8-----|
||------------5h8----------5h8-6h9------------5h8-5-5-----6-----|
||-0000000000-----00000000---------0000000000---------0-0-------|
   ..........     ........         ..........         . .
||--------------------------------------------------------------|
||--------------------------------------------------------------|
||--------------------------------------------------------------|
||-------------------------------------------------7-7-8-8-8----|
||-------------5h8---------5h8-6h9-------------5h8-5-5-6-6-6----|
||-0-0-0-0-0-0-----0-0-0-0---------0-0-0-0-0-0------------------|
   . . . . . .     . . . .         . . . . . .