A
I-------------------------I
I-------------------------I
I-------------------7--(b9)-I
I-2-----5-----8-----7--(b9)-I
I-2-----5-----8-----5--7--I
I-0-000-3-000-6-000-------I

B
I------------------------------------I
I------------------------------------I
I------------------------------------I
I------------------------------------I
I--------------5------------5-7-5-4--I
I-000000000000-3-5-00000000-3-5-3-2--I

C
I----------------------------------------I
I----------------------------------------I
I-5----7---------------------------------I
I-5----7------5------------5-------------I
I-3----5------5------------5-------------I
I-----------0-3--0-0-0-0-0-3--0-0-0-0-0--I

FILL 1
I------I
I------I
I-7----I
I-7----I
I-5----I
I------I