title: How does printf statement work here, when printing integer number?
body: <pre><code>#include&lt;stdio.h&gt;
  int main()
  {
      int a=034;
      printf("%d",a);
      return 0;
  }
  </code></pre>
  
  <p>If I give a value as  034, the output is 28.
  if it's 028, it gives an error saying "invalid digit "8" in octal constant".</p>