test

function Drop() -- u can allways rename this :D/>/>
  for i = 1,16 do
   if turtle.getItemCount(i) > 0 then
        turtle.select(i)
   turtle.dropDown()
--  sleep(2)
  end
end
end

while true do
 while rs.getInput("back") do
  Drop()
sleep(4)
end

 while not rs.getInput("back") do
  sleep(3)
 end
end