How is this possible?
603285
this is possible to figure out.  What it is a combination of numbers   i will do examples to keep it simple.   If your number was 00  or 000  then the answer was 9.  well its a pattern    if your number is 001 then the answer he came up with was 8.  well then if you had 002  then it was 7.  but also on the note if your number was 011 or some combination of this number then it was 8 also  because when you take 011 and add 0+1+1 you get 2 so it was 8.   the way it works is the numbers you type in it adds them together so there is a correlating number that goes with the answer that was added together.  so... if the numer added together was 0 then it was 9.  and the number added together was 1 then he came up with 8.  added together you got 2 then he said 7.  and just keep going ... 3 is 6,   4 is 5.    also on the same account    5 is 4,  6 is 3,   7 is 2,   8 is 1,  and 9 is 0.
96830
sorry, this is not possible
881634
I guess it is 'possible' but extremely improbable.
35018
Yes, it is possible. But here's two websites, one for your question (So that you know WHY it isn't common), and one to explain how it happens.
60959
I don't think that's possible.
142019
Never heard of doing it that way.\n\nK
509724
I don't think there is any way you can do this.  Sorry!\n\nJeffrey
802894
It is indeed possible...I'm just not sure on what planet.
307589
Bit confused, the question.
478532
this is not possible.
404352
maybe, its possible, but i dont think so!
784712
If you are asking, then someone else has thought of it, and it has probably occured.  The real challenge would be to be able to identify cases where it occured.  That is way beyond my technical expertise.  Quite an interesting question!
2347
You will get better answers below. I have not found any way to do that, but the folks below are very clever.
422883
I don't think it is possible
1048852
I dont think thats possible.
749954
how is this even a question?
228586
No... How can it? It's clear... and yeah :)