title: finding the missing values in a range using any scripting language - perl, python or shell script
body: <p>I got stuck in one problem of finding the missing values in a range and the range is also variable for the successive rows.</p>
  
  <h3>input</h3>
  
  <pre>673 673 673 676 676 680
  2667 2667 2668 2670 2671 2674</pre>
  
  <h3>output should be like this</h3>
  
  <pre>674 675 677 678 679
  2669 2672 2673</pre>
  
  <p>This is just one part and the row values can be more also
  If you need any clarification, please let me know.</p>