Thank you for that question.
This was indeed a huge challenge. Normally, to make a change of this magnitude and complexity affecting this many people would take quite a number of months to do, to reprogram the systems. We came up with some innovative ways. I don't want to get into all the details of the technology, but we brought together our technology specialists and our program designers. We came up with a strategy to implement this and test it in a rigorous fashion so that we were able to implement it without taking any undue risks.
A big part of the strategy in implementing this is to make sure you do it accurately so that you're not mispaying people. We think we got the right balance between an expeditious implementation and doing it without putting the program at risk.