arat bratk cratk4 drat eratk
zhbtk 0hbtk4 1hbt 2hbtk 3hbtk4
o8btk4 p8bt q8btk r8btk4 s8bt
dzct ezctk fzctk4 gzct hzctk
2pdtk 3pdtk4 4pdt 5pdtk 6pdtk4