wall

local args={...}
length=args[1]
height=args[2]
turtle.select(1)
turtle.turnLeft()
turtle.turnLeft()
for heighti=1, height/3 do
 turtle.placeDown()
 turtle.placeUp()
 for lengthi=1,length-1 do
  turtle.back()
  turtle.placeUp()
  turtle.place()
  turtle.placeDown()

  if lengthi % 16 ==0 then
   for i=1,16 do
    turtle.select(i)
    turtle.transferTo(1)
   end
   turtle.select(1)
  end
 end
 print("loop "..tostring(heighti).." traveled "..tostring(heighti*3).." blocks")
 turtle.digUp()
 turtle.up()
 turtle.placeDown()
 turtle.digUp()
 turtle.up()
 turtle.placeDown()
 turtle.digUp()
 turtle.up()
 turtle.placeDown()
 turtle.turnLeft()
 turtle.turnLeft()

 for i=1,16 do
  turtle.select(i)
  turtle.transferTo(1)
 end
 turtle.select(1)
end