Make_Wall

tempSlot = 3

function checkItem()
  if turtle.getItemCount(2) == 0 then
    turtle.select(tempSlot)
    turtle.transferTo(2)
    turtle.select(2)
    tempSlot = tempSlot + 1
  end
end

function checkFuel()
  if turtle.getFuelLevel() < 100 then
    turtle.select(1)
    turtle.refuel()
    trutle.select(2)
  end
end

print("Type Wall Size...")
local wallsize = tonumber(read())
checkFuel()
turtle.select(2)
local i = 1
local j = 1
while i <= 4 do
  j = 1
  while j <= wallsize-1 do
    turtle.back()
    turtle.place()
    checkItem()
    j = j + 1
    checkFuel()
  end
  i = i + 1
  checkItem()
  turtle.turnRight()
end