startup

while true do
    for i=1,3 do
        turtle.select(i)
        turtle.suck()
    end

    for j=9,11 do
        turtle.select(j)
        turtle.suck()
    end

    turtle.turnLeft()

    for i=5,7 do
        turtle.select(i)
        turtle.suck()
    end

    turtle.turnRight()

    turtle.craft()

    for i=1,16 do
        turtle.select(i)
        turtle.dropDown()
    end
end