Description: A book page from the natural number coding sequence until the beginning of one natural number n. Book page number in accordance with the usual habit of scheduling, each page number are non-redundant pre-digital 0. For example, article 6 with figures six express, rather than 06 or 006 and so on. Count the number of problem calls for a given book
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- [divi] - Positive integer x can be about a few of
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