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read in N
constraints[N][2]
for i from 1 to N:
read in constraints[i][1] and constraints[i][2]
for every permutation P of [ Bessie, Buttercup, Belinda, Beatrice, Bella, Blue, Betsy, Sue ]:
for i from 1 to N:
bad = false
if the position of constraints[i][1] is NOT next to position of constraints[i][2]
then set bad to true
if NOT bad
then output P
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