Masterlock - combination recovery helper

One day, I was at work and a friend of mine was trying to recall what his Master lock combination was.  He knew the first and last number.  I had done a bit of googling and found that if you know the last number of the combination, there is a defined set of possible options!  This was promising.  After figuring out the algorythm, I set forth on a quest to provide a nice template for him to use when doing the recovery.  It turns out that there are only 100 possible combination should you know that last number. 

If you want to use it, please click here.