It is not 7 tens and 2 ones., , It is not 2 tens and 4 ones., , It is not 9 tens and 8 ones., , It is not 4 tens and 7 ones., , It is not 6 tens and 5 ones., , It is not 3 tens and 6 ones., , It is not 1 tens and 3 ones., , It is not 8 tens and 1 ones., , What number is it?.

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