A. The year 2013 uses four different digits. When did this last happen? B. The digits in 2013 form a sequence (0, 1, 2, 3). When did this last happen (not necessarily the same digits)? C. The digits in 2013 form a sequence (0, 1, 2, 3). When will this next happen (not necessarily the same digits)?

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Answers

2015-10-05T18:16:37+05:30