title: QString::arg() with number after placeholder
body: <p>I want to use .arg() on a string. This is an example:</p>
  
  <pre><code>qDebug() &lt;&lt; QString("%11%2").arg(66).arg(77);
  </code></pre>
  
  <p>I would like to get the output <code>66177</code> but of course this isn't the actual output since <code>%11</code> is interpreted as placeholder #11 instead of place holder #1 followed by a literal 1.</p>
  
  <p>Is there a better solution than the following?</p>
  
  <pre><code>qDebug() &lt;&lt; QString("%1%2%3").arg(66).arg(1).arg(77);
  </code></pre>