|
+ B/D.
+ A/B/C/D.
+ A/C.
+ B/D.
+ A/C.
+ B.
+ A/C.
+ B.
+ B.
+ B/D.
+ A/B/C/D.
+ A/C.
+ B/D.
+ A/C.
+ A/C.
+ C,
+ A.
+ B,
+ B.
+ B, 
+ A/C.
+ B, 
+ A/C.
+ B.
+ B.
+ B/D.
+ A/B/C/D.
+ A/C.
+ B/D.
+ A/C.
+ A/C.
+ B,
+ B.
+ A.
+ B, 
+ A/C.
+ B.
+ B.
+ A/C.
+ A/C.
+ B/D.
+ B/D.
+ A/C.
+ A.
+ B,
+ B.
+ A.