rubber

while not turtle.detectDown() do
	turtle.down()
end

function capU()
while not turtle.detectUp() do
	turtle.up()
	for i=1,4 do
		turtle.turnLeft()
		if turtle.detect() then
			turtle.dig()
		end
	end
end
end

function capD()
while not turtle.detectDown() do
	turtle.down()
	for i=1,4 do
		turtle.turnLeft()
		if turtle.detect() then
			turtle.dig()
		end
	end
end
end

function out()
	for i=1,16 do
		turtle.select(i)
		turtle.drop()
	end
end

while 1<2 do
	capU()
	os.sleep(60)
	capD()
	out()
	print("Fuel: "..turtle.getFuelLevel())
	os.sleep(60)
end