4
XWY
ZX
ZXY
ZXW
YWWX
#
E
EC
ECC
ECCC
ECCCC
ECCCCDDDDDD
ECCCCDDDDDDEEEE
C
CC
CCD
CCDE
D
DAAAAAA
DAAAAAAAA
DAAAAAAAAAAAA
DAAAAAAAAAAAAAABBBB
B
BC
BCCC
BCCCBBBBBBBB
A
AE
AEC
AECD
AECDA
X
XZ
XZZZZZZZZ
XZZZZZZZZXX
Z
ZX
ZXXXA
ZXXXAFGHKB
A
AX
AXXXX
AXXXXXXXX
F
FAX
FAXX
FAXXXX
FAXXXXXGHK
G
GZX
GZXZX
GZXZXZX
GZXZXZXZXZXZXZX
H
HA
HAA
HAAAA
HAAAAAAZX
K
KK
KBKKK
KBKKKBBBBB
B
BX
BZX
X
XAAAAAA
B
BA
BZ
BG
AB
ABBB
ABBBB
ABBBZ
ABBBZZZZ
AZ
AF
AFZ
AFZX
AFZXZX
AFZXZXZX
ZFZFZFZFZFZF
FZFZFZFZFZFZ
G
GAF
GABZ
GABZZZZZ
GABFFFFFF
GABFFFFFFG
GABFFFFFFGG