wall

turtle.select(1)
term.clear()
term.write ("Please Specify Height: ")
userInput = read()
term.clear()
term.write ("Please Specify Width: ")
userInputTwo = read()
userInput = userInput - 1
userInputTwo = userInputTwo - 1

function pillar()
  if turtle.getItemCount(1) ~= 0 then
    for i = 1, userInput do
      turtle.place()
      turtle.up()
      turtle.place()
    end
    for h = 1, userInput do
      turtle.down()
    end
  else
    term.write ("Unable to build a pillar.(NotEnoRes)")
  end
end

function sideways()
  turtle.turnRight()
  turtle.forward()
  turtle.turnLeft()
end

function wall()
  for j = 1, userInputTwo do
    pillar()
    sideways()
  end
end

function rturn()
  turtle.turnLeft()
  for l = 1, userInputTwo do
    turtle.forward()
  end
  turtle.turnRight()
end

wall()
pillar()
rturn()