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There is a town named Chefland where Chef lives. One can only enter the Chefland through visa which is granted by head Chef of the town named Chef Sanjeev Kapoor. Chef Sanjeev is very interested in the single-bit operation, more specifically $XOR$ operation. Hence he devised a test to get into the Chefland. In the test, he may give a number $N$ with digits say $a_1,a_2,a_3..............a_n$, wher

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solution.cppC++17

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