I had 1,010,003 in my notes and (briefly) in the article before changing it, but I clearly messed it all up. In rereading, its not completely clear that 'appnum' corresponds to the 10,000 + N earlier in that paragraph, but it does.
So it should be M*100,000 + 10,000+N = 1,010,003 for u10_a3.
My apologies for not being clearer (and for being wrong, of course :)