I just found this. Since I had a (new) padlock handy, I thought I would give it a quick shot.
The first step was a little awkward, but it worked.
The second step was brain-dead easy.
The third step was too tedious for me to try without really needing to do it, so I just looked up the right block of codes, then looked at the code on my lock to see if it would work.
And it wouldn't! I was terribly upset about this.
But I tried it anyway... and it worked. Surprised by this result, I fiddled around a bit and discovered that the second number was really sloppy. For me, it worked on 11, 12, 13, and 14.
I didn't try all the variants on the first number, but I did notice that the first number was also "sloppy", and worked on other numbers than the number given on the package.
In other words, the padlock is a ruse; an illusion. It's not as "secure" as it makes you think it is.