Findings the Unmatched Strings
<p>Lets say that I have two strings:</p>

<ol>
<li><p>"The System is in halt state."</p></li>
<li><p>"The System is in [A] state."</p></li>
</ol>

<p>Is it possible to find the difference between the two strings ,I need both [A] and halt as output. </p>

<p>As of now i'm splitting every word and check for the match.</p>

<p>Is there any better way...? </p>
