#N Integral with tub and hook
#O Unknown
#C http://conwaylife.com/wiki/Integral_with_tub_and_hook
#C http://conwaylife.com/patterns/integralwithtubandhook.rle
x = 6, y = 7, rule = B3/S23
4bo$3bobo$4bo$b3o$o$bo$2o!