title: Cron Expression recurring after every two week
body: <p>I need to trigger my mail every alternate Monday and Wednesday. I am using Java Spring in my application. I have try using this cron expression <code>00 15 11 ? * MONDAY#1</code> and same for Wednesday, but it is triggering on 1 Monday and Wednesday of the month. What I want is it should trigger on Monday and Wednesday of first, third and fifth week of each month.</p>
  
  <p>Can someone please help me in creating this cron expression.</p>