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Lexicographically Smallest

Once upon a time, in a faraway land, there was a string kingdom. The string kingdom was a peaceful and harmonious place, with strings of different lengths and characters living together in perfect harmony. One day, a great disaster struck the string kingdom. A string virus swept through the land, infecting strings with a mysterious and deadly disease. The only way to cure the disease was to repla

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solution.cppC++17

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