In vector x of length n we define (n+1) position as going back to the first position (so called wrap-around effect). Can you return the value of x at a given position, taking into account the above rule?
Example: x = [1 2 3] -> x(1) yields 1, x(5) should yield 2; and so on.
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This problem has been updated to have more than one test case in the test suite.