title: iOS stopwatch label
body: <p>I am pretty new to Objective C and therefore have a question for you guys.
  I am making an Ice Skating app. I have a stopwatch label that works: 00:00.00 (mm:ss.SS).
  Now I have 2 labels to display the laptime to the skater.
  So I want one label to display the second small s from the left.
  In another label I want to show the first big S from the left.
  So in someway I have to use a specific part of the 0:00.00 label.</p>
  
  <p>Assistance would be appreciated.</p>