function wall (width, height)
y = 0

while y < height do
  x = 0

  turtle.turnLeft()
  turtle.turnLeft()

  while x < widht do
    turtle.back()
    turtle.place()

    x = x + 1
  end

  turtle.up()
  turtle.forward()

  y = y + 1
end
end

wall (5, 3)