LUCKY DAY OR NOT

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David is a very superstitious person. He judges whether his next day will be lucky or unlucky based on the numbers he has seen on the current day. If the sum of the numbers is 13 or it's positive multiple then he thinks he will have a lucky day else he thinks he is going to have an unlucky day. Help David find out whether his next day will be lucky or unlucky. ### Input - First line will contain

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solution.cppC++17

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