String Shift

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Chef is in his room playing with toy trains. The train compartments are named single alphabets i.e., cheftrain is a train consisting of $9$ compartments with names $c, h, e, f, t, r, a, i, n$. Now, Chef creates a circular track and shifts the last $2$ compartments to the right such that the new formation is $cheftrain>>incheftra$. He could also shift the first $4$ compartments to left and make it

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solution.cppC++17

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