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Maximize Number After Erasing Digits

1800SpecialistCombinatoricsCounting Principles

Desafios

Carlos wrote down all the numbers from 1 to 60 in a row: $$ 1234567891011121314 \cdots 57585960 $$ Then he erased 100 digits so that the number formed by the remaining digits was as large as possible, without changing the original order of the digits. What is that number?
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