track to left +from right (with exact circles)
<a href="//commons.wikimedia.org/wiki/User:Tuvalkin" title="User:Tuvalkin">Tuvalkin</a> and <a href="//commons.wikimedia.org/wiki/User:Mahir256" title="User:Mahir256">Mahir256</a>
2013-12-07
Own work based on: <a href="//commons.wikimedia.org/wiki/File:BSicon_uemSTRl%2Br.svg" class="mw-redirect" title="File:BSicon uemSTRl+r.svg">BSicon uemSTRl+r.svg</a>