a3
a4
a1
a2
a2b
a5
a6
a6a
a6b
a6c
a7
b1
b2
b3
a8
b4
b5
b7
b6
b8a
b8b
b8f
b8g
b8c
b8d
b8e
b8h
b8i
b8j
b8k
b8l
b8m
b8n
b8o
b8p
b8q
c1
c2
c2a
c2b
c2c
c2d
c2e
c2g
c2f
c2ja
c3
c3a
c3b
c2j
