CF584D Dima and Lisa

Dima loves representing an odd number as the sum of multiple primes, and Lisa loves it when there are at most three primes. Help them to represent the given number as the sum of at most than three primes. More formally, you are given an odd numer $ n $ . Find a set of numbers $ p_{i} $ ( $ 1

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A prime is an integer strictly larger than one that is divisible only by one and by itself.