title: How is this simple add numbers and output code doesn't work? (Whitespace language)
body: <p>I want the code to output 5,  which is got from 2+3 (inputted from stack manually)</p>
  <pre><code>[space][space][space][tab][space] push 2
  [space][space][space][tab][tab] push 3
  [tab][space][space][space] add together
  [tab][lf]
  [space][tab] output number
  </code></pre>
  <p>But it seems to say that it is a invalid line end? What happened?</p>