[
[A 9 8 8 I]
[B 2 1 2 III]
[C 9 8 9 I]
[D 8 9 9 II]
[E 1 8 2 I]
[F 9 8 8 III]
[G 2 2 3 II]
]
[
[H 5 7 9]
]