til duke

input = {...}
turtle.select(1)
selected = 1

function checkStack()
if turtle.getItemCount(selected) <=5 then
  selected = selected +1
end
turtle.select(selected)
end

function row()
checkStack()
turtle.placeDown()
for i = 1, 4 do
    for i = 1, 2 do
      turtle.forward()
    end
    turtle.placeDown()
    checkStack()
end
end

function rowForward()
row()
turtle.turnRight()
turtle.forward()
turtle.forward()
turtle.turnRight()
end

function rowBack()
row()
turtle.turnLeft()
turtle.forward()
turtle.forward()
turtle.turnLeft()
end


function newLayer()
--turtle.turnLeft()
--for i = 1,10 do
--  turtle.forward()
--end

turtle.turnLeft()
for i = 1,8 do
  turtle.forward()
end
turtle.turnRight()
--turtle.turnRight()
turtle.up()
turtle.up()
turtle.up()
end



-- LOOP --
for i = 1, input do
rowForward()
rowBack()
rowForward()
rowBack()
--rowForward()
newLayer()
end