|
+ B.
+ B/D.
+ B/D.
+ B/D.
+ A/C.
+ A/C.
+ A/C.
+ A/C.
+ A/C.
+ B.
+ B.
+ B/D,
+ B/D.
+ B/D,
+ B/D.
+ B/D.
+ A/C,
+ B/D.
+ A/C, (not at corner)
+ B/D.
+ A/C.
+ A/C.
+ A/C, (not at corner)
+ B/D.
+ A/C,
+ B/D.
+ A/C.
+ B.
+ B.
+ A/B/C/D.
+ A/B/C/D.
+ B/D.
+ A/C.
+ B/D.
+ A/C.
+ B.
+ A/C.
+ A, 
+ A/C.
+ A, A, 
+ A/C.
+ B.
+ A/B/C/D.
+ A/B/C/D.
+ B/D.
+ A/B/C/D.
+ A/C.
+ B.
+ A/C.
+ B/D.