Combinatorics problem

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In a board we write f93f5c51ea4b04b4992b003b39479f29018f6bda consecutive integers, after this we realize the following operation, we will split these numbers in pairs and, at the same time; we change the numbers in a pair, by their sum and their difference(not necessarily positive). Prove that we can not obtain f93f5c51ea4b04b4992b003b39479f29018f6bda consecutive integers again.

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