Welcome, Again, to the Nostradamus Server!

I am impressed! Your guess that my number begins with 642120898 was exactly right!
What do you guess are the next two digits of my number?
64212089800
64212089801
64212089802
64212089803
64212089804
64212089805
64212089806
64212089807
64212089808
64212089809
64212089810
64212089811
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64212089831
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64212089836
64212089837
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64212089839
64212089840
64212089841
64212089842
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64212089844
64212089845
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64212089849
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64212089851
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64212089888
64212089889
64212089890
64212089891
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64212089895
64212089896
64212089897
64212089898
64212089899