r -1 -1 -1 0
r -1 -1 -1 1
r -1 -1 0 -1
r -1 -1 0 0
r -1 -1 0 1
r -1 -1 1 -1
r -1 -1 1 0
r -1 -1 1 1
#
r -1 0 -1 1
r -1 0 0 -1
r -1 0 0 0
r -1 0 0 1
r -1 0 1 -1
r -1 0 1 0
r -1 0 1 1
#
r -1 1 0 -1
r -1 1 0 0
r -1 1 0 1
r -1 1 1 -1
r -1 1 1 0
r -1 1 1 1
#
r 0 -1 0 0
r 0 -1 0 1
r 0 -1 1 -1
r 0 -1 1 0
r 0 -1 1 1
#
r 0 0 0 1
r 0 0 1 -1
r 0 0 1 0
r 0 0 1 1
#
r 0 1 1 -1
r 0 1 1 0
r 0 1 1 1
#
r 1 -1 1 0
r 1 -1 1 1
#
r 1 0 1 1
# other direction
r -1 0 -1 -1 
r -1 1 -1 -1 
r 0 -1 -1 -1 
r 0 0 -1 -1 
r 0 1 -1 -1 
r 1 -1 -1 -1 
r 1 0 -1 -1 
r 1 1 -1 -1 
#
r -1 1 -1 0
r 0 -1 -1 0
r 0 0 -1 0
r 0 1 -1 0
r 1 -1 -1 0
r 1 0 -1 0
r 1 1 -1 0
#
r 0 -1 -1 1
r 0 0 -1 1
r 0 1 -1 1
r 1 -1 -1 1
r 1 0 -1 1
r 1 1 -1 1
#
r 0 0 0 -1
r 0 1 0 -1
r 1 -1 0 -1
r 1 0 0 -1
r 1 1 0 -1
#
r 0 1 0 0
r 1 -1 0 0
r 1 0 0 0
r 1 1 0 0
#
r 1 -1 0 1
r 1 0 0 1
r 1 1 0 1
#
r 1 0 1 -1
r 1 1 1 -1
#
r 1 1 1 0
