while (true) do
    for i = 1, 15 do
        turtle.dig()
        turtle.forward()

        for i = 1, 5 do
            turtle.digUp()
            turtle.up()
        end

		for i = 1,5 do
		turtle.down()
	end

        turtle.select(2)
        turtle.placeDown()
        turtle.select(1)
    end

    turtle.turnRight()
    turtle.forward()
        turtle.turnRight()

    for i = 1, 15 do
        turtle.forward()
    end
    turtle.turnRight()
    turtle.forward()
    turtle.turnRight()
    itemcount = turtle.getItemCount(1)
    turtle.dropDown(itemcount)
end