title: What is a best way to increment alphanumeric ID by certain value in C#?
body: <p>What is a best way to increment alphanumeric ID by certain value in C#?</p>
  
  <p><em>For example:</em></p>
  
  <p>We've <strong>345FAS310E575896325SA</strong> and we're going to increment by 123 , so we have as result: <strong>345FAS310E575896325SA123</strong></p>
  
  <p>Or we've <strong>345FAS310E575896325SA123</strong> and increments by 234 , and result should be <strong>345FAS310E575896325SA357</strong> </p>
  
  <p><strong>What is a "cheapest" way to make it work?</strong></p>