Instances downloaded from:
http://or.dei.unibo.it/library/2dpacklib

The instances are in the following format:

m
W H
i w_i h_i d_i b_i p_i (for each i=1,...,m)

where:
m: number of items
W: width of the bin
H: height of the bin
i: item ID (starting from 1)
w_i: width of item i
h_i: height of item i
d_i: demand of item i (minimum number of copies to be packed)
b_i: maximum number of copies of item i
p_i: profit of item i