turtle.refuel()
place = 0
slot = 2
while true do
    turtle.placeDown()
    turtle.turnLeft()
    turtle.place()
    turtle.turnRight()
    turtle.turnRight()
    turtle.forward()
    turtle.placeDown()
    turtle.place()
    turtle.turnLeft()
    turtle.forward()
    turtle.turnRight()
    turtle.place()
    turtle.placeDown()
    turtle.turnRight()
    turtle.turnRight()
    turtle.forward()
    turtle.placeDown()
    turtle.place()
    turtle.turnRight()
    turtle.forward()
    place = place + 8
    if place == 64 then
        turtle.select(slot)
        slot = slot + 1
        place = 0
        if slot == 17 then
            slot = 1
        end
    end
end