#C A period 600 butterfly gun.
#C This uses two period 200 butterfly guns whose output reacts to form the
#C single period 600 output stream.
#C David I. Bell, December 1999
x = 89, y = 82, rule = B3678/S34678
75b10o$74bo10bo$72b16o$72b16o$71b18o$25boo44boobo10boboo$23b4o48b10o$
23b3o$22b5o$22b5o$22b5o$21bob3obo$21bob3obo14bo$21bob3obo13boboboo$21b
ob3obo11bob6o6bo9boo10boobobobb3oboo$22b5o11b8obo3b6o4b3obbobboo4b14o$
21bob3obo9b10obb6obobbob9obo3b13o$21bob3obo8b20o3b12o3b15o$21bob3obo9b
10obb6obobbob9obo3b13o$21bob3obo10b8obo3b6o4b3obbobboo4b14o$22b5o12bob
6o6bo9boo10boobobobb3oboo$22b5o14boboboo$22b5o15bo$23b3o6b3o$23b4o$25b
oo5b3o$$32b3o$27b4o5b4o35b10o$23boobo4b5o4boboo27boobo10boboo$23b9o3b
9o27b18o$24b19o29b16o$24b8o3b8o29b16o$26bo4b5o4bo33bo10bo$27b4o5b4o35b
10o$32b3o$$32b3o$$32b3o6$9boo3boo39b8o$6boo4bo4boo$5bobb4ob4obbo33b12o
$3b6obb3obb6o29b4o8b4o$3b19o29b16o$bb7obb3obb7o27b5o8b5o$bboobobb4ob4o
bboboo27boob12oboo$6boo4bo4boo$9boo3boo39b8o$$4boo79bo$bb4o79boo$bb3o
80boo$b5o38boboo34b3obo$b5o37boboobo14bo19b3o$b5o36bob3obo8bobobbobob
oo$b5o30bo6b6o7b12o$b5o15boboo10boboo4b6o5b13o$b5o13bobb3o9bob3o3b7o5b
14o$b5o13b6o10boboo4b6o5b13o$ob3obo15bobbo10bo6b6o7b12o$b5o14bob3o17bo
b3obo8bobobboboboo$b5o15boo20boboobo14bo$b5o38boboo$b5o$b5o$b5o$b5o$bb
3o50b8o$bb4o$4boo44boob12oboo$50b5o8b5o$51b16o$51b4o8b4o$53b12o$$55b8o
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