Maybe I have not understood well (sorry, always i have the same problem because i don't speack...etc), In my opinion:
1- I do not work for Microsoft, much less free. So i have no reason to find/debug their mistakes
2- 33 + 33 = 66. Otherwise the problem is the compiler or languaje implementation=>Look@point 1
3- At this level anyone can be distinguish what is his own fault/bug or that of others, so=>Look@point 1