In your SELECT statement, what does the ACCESS clause say? In order to use the START command, the ACCESS must be DYNAMIC or RANDOM, not SEQUENTIAL. If your ACCESS is SEQUENTIAL, you must close the file, open the file again, then issue a READ command to retrieve the first reccord. And it is NEVER a good idea to write your code in such a way that you have to close and re-open files.
And after you've read the first record again, are you going to want to go back and read the 12th record next? In other words, your description of your processing need is woefully inadequate for a full solution.