Welcome, Again, to the Nostradamus Server!

I am impressed! Your guess that my number begins with 521031054 was exactly right!
What do you guess are the next two digits of my number?
52103105400
52103105401
52103105402
52103105403
52103105404
52103105405
52103105406
52103105407
52103105408
52103105409
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52103105441
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52103105471
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52103105496
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52103105499