Turtle code for Crystal Growth Accelerator

for i=1,12 do
turtle.select(i)
if turtle.getItemCount() >= 1
then rs.setOutput("bottom", true)
turtle.drop()
else rs.setOutput("bottom", false)
end
end

sleep(10)
turtle.suck()
rs.setOutput("bottom", false)

if turtle.compareTo(16)
then turtle.dropUp()
elseif turtle.compareTo(15)
then turtle.dropUp()
elseif turtle.compareTo(14)
then turtle.dropUp()
elseif turtle.compareTo(13)
then turtle.dropUp()
end

os.reboot()