wall

local function fuel()
    turtle.select(1)
    turtle.refuel()
end

local function build()
    turtle.select(2)
    turtle.back()
    turtle.place()
    turtle.back()
    turtle.place()
    turtle.back()
    turtle.place()
    turtle.back()
    turtle.place()
end

local function upTurn()
    turtle.up()
    turtle.turnLeft()
    turtle.turnLeft()
end

local function buildWall()
    fuel()
    build()
    upTurn()
    build()
end

local function help()
    print("Brændstof i felt 1")
    print("byggemateriale i felt 2")
    print("tjek kode ved ændringer")
end

buildWall()