Comparing Strings
<p>Does there exist any inbuilt function in python than can return number of  mathching characters in two strings,for example:</p>

<p>INPUT:</p>

<pre><code>   TICK TOCK
   CAT DOG
   APPLE APPLES
</code></pre>

<p>OUTPUT:</p>

<pre><code> 3
 0
 5
</code></pre>

<p>The words "TICK" and "TOCK" have a score of 3, since three characters (T, C, K) are the same. Similarly, "CAT" and "DOG" score 0, since no letters match.</p>

<p>I am a new bie in python so please help me with examples.</p>
