local length = 0
local width = 0
local help = 0

local fuel = 0

function llength()
    while (turtle.detectUp() == true) do
	turtle.place()
        turtle.Up()
	turtle.forward()
        fuel = fuel + 2
        help = help + 1
    end
    for (i = 1, help do)
        turtle.Down()
        fuel = fuel + 1
    end
    help = 0
end

term.write("Length? ")
length = tonumber(read())
    for (i = 1, length do)
        llength()
    end
write("Verbrauchte Energie: ")
term.write(tostring(fuel))