Inverted Number

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Yogesh Deolalkar gave Vaibhav an integer number x. Vaibhav isn't good at numbers but he loves inverting digits in them. Inverting digit d means replacing it with digit 9 - d. Help Vaibhav to transform the initial number x to the minimum possible positive number by inverting some (possibly, zero) digits. The decimal representation of the final number shouldn't start with a zero. ### Input - First

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solution.cppC++17

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