D-Or

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Dr.D got so famous thanks to his first problem that he decided to commemorate it by making yet another problem with an almost identical statement — he only changed one word. We want to choose exactly two integers (not necessarily distinct) from the interval $[L, R]$. Find the maximum possible value of the bitwise OR of the chosen integers. ### Input - The first line of the input contains a singl

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solution.cppC++17

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