title: How to concatenate string with a backslash with another string
body: <p>How can I concatenate the string <code>"\u"</code> with <code>"a string"</code> to get "\u0000"? </p>
  
  <p>My code creates two backslashes:</p>
  
  <pre><code>string a = @"\u" + "0000";  //ends up being "\\\u0000";
  </code></pre>