local args = {...}
local length = args[1]

for i=1,length,1 do
    turtle.place()
    turtle.refuel()
    turtle.placeDown()
    turtle.refuel()
    turtle.placeUp()
    turtle.refuel()
    if turtle.detect() then
        turtle.dig()
    end
    turtle.forward()
end

turtle.turnLeft()
turtle.turnLeft()

for i=1,length,1 do
    if turtle.detect() then
        turtle.dig()
    end
    turtle.forward()
end

turtle.turnLeft()
turtle.turnLeft()