#C A period 4240 rocket gun.
#C This works using pairs of period 106 sparking oscillators to turn the
#C back of a rocket into another rocket heading in the other direction,
#C while allowing the front of the rocket to continue onward.  This is
#C repeated again so that a rocket travels back and forth between pairs
#C of the oscillators, releasing a new rocket at each end.  One end is
#C capped with a period 4 eater oscillator to suppress the rockets from
#C that end.
#C David I. Bell, April 1997
x = 1085, y = 67, rule = B3678/S34678
39bobo1017bobo$37b7o1013b7o$37b7o1013b7o$35b5ob5o1009b5ob5o$35b11o
1009b11o$33b7ob7o1005b7ob7o$33b15o1005b15o$31b9ob9o1001b9ob9o$31b19o
1001b19o$29b11ob11o997b11ob11o$29b23o997b23o$27b13ob13o993b13ob13o$27b
27o993b27o$25b15ob15o989b15ob15o$25b4obb19obb4o989b4obb19obb4o$27b5o4b
4ob4o4b5o993b5o4b4ob4o4b5o$32b4o4bo4b4o1003b4o4bo4b4o$29boo19boo997boo
19boo$40bo1019bo$$40bo1019bo$$40bo1019bo$$40bo1019bo$$40bo1019bo$1077b
oo$40bo1019bo16boo$1072boobb3obo$1048bo12boo8bob6obboo$1045bo3bo9b6ob
oo4b10obo$bo1042b5o10b11obb11obo$3o1041b9o7b25o$bo1042b5o10b11obb11obo
$1045bo3bo9b6oboo4b10obo$1048bo12boo8bob6obboo$1072boobb3obo$40bo1019b
o16boo$1077boo$40bo1019bo$$40bo1019bo$$40bo1019bo$$40bo1019bo$$40bo
1019bo$29boo19boo997boo19boo$32b4o4bo4b4o1003b4o4bo4b4o$27b5o4b4ob4o4b
5o993b5o4b4ob4o4b5o$25b4obb19obb4o989b4obb19obb4o$25b15ob15o989b15ob
15o$27b27o993b27o$27b13ob13o993b13ob13o$29b23o997b23o$29b11ob11o997b
11ob11o$31b19o1001b19o$31b9ob9o1001b9ob9o$33b15o1005b15o$33b7ob7o1005b
7ob7o$35b11o1009b11o$35b5ob5o1009b5ob5o$37b7o1013b7o$37b7o1013b7o$39bo
bo1017bobo!
