title: How to go to the previous line in a C code
body: <p>If for the following code:</p>
  
  <pre><code>printf("HEllo\n");    // do not change this line.
  printf("\b\bworld");
  </code></pre>
  
  <p>I need an output: Helloworld (In a single line). But this does not work fine. Could anyone please explain the reason? And other escape sequence if any.</p>