@UTF8
\ +l1 +s1 +b50
%xxx:	
 " $Y
  :A
   :BB
    :CCC
     :DDDD
     :DDDD
     :DDDD
     :DDDD
     :DDDD
    :CCC
    :CCC
   :BB
  :A
  :A
  :A
  :A