The Lastdigit Permeability

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Penny knows that in order to continue her relationship with Leonard she should know some basic science. This makes her ask Sheldon to teach her some basic concepts of algebra Sheldon starts by teaching how different ways of parenthesizing an equation can change the result. In order to check whether Penny understood the concept he gave her a question. In the question he gave her an expression with

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solution.cppC++17

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