Arrow down-up

<svg width="1em" height="1em" viewBox="0 0 16 16" class="bi bi-arrow-down-up" fill="currentColor" xmlns="http://www.w3.org/2000/svg">
  <path fill-rule="evenodd" d="M11 3.5a.5.5 0 0 1 .5.5v9a.5.5 0 0 1-1 0V4a.5.5 0 0 1 .5-.5z"/>
  <path fill-rule="evenodd" d="M10.646 2.646a.5.5 0 0 1 .708 0l3 3a.5.5 0 0 1-.708.708L11 3.707 8.354 6.354a.5.5 0 1 1-.708-.708l3-3zm-9 7a.5.5 0 0 1 .708 0L5 12.293l2.646-2.647a.5.5 0 1 1 .708.708l-3 3a.5.5 0 0 1-.708 0l-3-3a.5.5 0 0 1 0-.708z"/>
  <path fill-rule="evenodd" d="M5 2.5a.5.5 0 0 1 .5.5v9a.5.5 0 0 1-1 0V3a.5.5 0 0 1 .5-.5z"/>
</svg>