I seriously think that sample output is screwed up. For example, the lowest line reads:

-1 1 4 - 1 4

But taking into account the proximity of the branch with ID=4
(bin: 100) and the branch with ID=1 (bin: 001) shouldn't all non-negative numbers in line equal 5( bin: 101), like

-1 5 5 -1 5 ?

Could someone make it clear for me? I would be very grateful;-)