#N isotropic-rule-wire-construction-gun.rle
#O silversmith, 21 March 2021
#C
#C This isotropic non-totalistic (INT) rule is also a Generations 
#C rule, with three states instead of two.  It supports signal-based 
#C construction, based on a signal generator and an "information strip"
#C memory loop.
#C
#C The signals travel on opposite sides of a construction arm.
#C When the signals combine at the end they can push, pull, and turn
#C the arm in both directions.
#C
#C Reference:
#C https://conwaylife.com/forums/viewtopic.php?p=103244#p103244
x = 137, y = 70, rule = 1e2-a3-cij4aijkrtz5cnqr/2ce3aejnr4aj5y6a/3
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