36-Seek-and-Destroy-2

-- 7 Billion Humans (2145) --
-- 36: Seek and Destroy 2 --

mem1 = nearest shredder
a:
if mem2 != datacube and
 c == datacube:
	mem2 = set c
endif
if c < mem2:
	mem2 = set c
endif
if n == wall:
	pickup mem2
	giveto mem1
endif
step n
jump a