Turtle Organize

for i = 1,16 do
  if turtle.getItemCount(i) > 0 and turtle.getItemCount(i) < 64 then
    turtle.select(i)
    for j = i+1,16 do
      if turtle.compareTo(j) then
        turtle.select(j)
        turtle.transferTo(i)
        turtle.select(i)
      end
    end
  end
end

for i = 1,16 do
  if turtle.getItemCount(i) > 0 then
    for j = 1,i do
      if turtle.getItemCount(j) == 0 then
        turtle.select(i)
        turtle.transferTo(j)
        break
      end
    end
  end
end