function main()
	Fuel = turtle.getFuelLevel()
	print(Fuel)
	if Fuel > 100 then
		if i < 12 then
			move()
		end
		if i = 12 then
			turn()
		end
	end
	if Fuel < 100
		turtle.select(16)
		turtle.refuel(1)
	end
	main()
end

functon move()
	turtle.up()
	turtle.dig()
	turle.down()
	turle.dig()
	turtle.forward()
end

function turn()
	turtle.left()
	turtle.forward()
	turtle.forward()
	turtle.left()
	i = 0
	main()
end
main()