title: Generate Random Numbers with Fixed Digits Length?
body: <p>I am generating Random Number with </p>
  
  <pre><code>int randomID = arc4random() % 3000;
  </code></pre>
  
  <p>But I want to generate random number with atleast 4 digits. like 1000, 2400, 1122</p>
  
  <p>I want to know the code for Objective C.</p>