Definition: In this task, you are given inputs i, j, and A, where i and j are integers and A is a list. You need to find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output the resultant string. i and j will be non-negative, and will always have a value less than the length of A. i will always be less than j. Perform the operations in order, i.e., do not concatenate the elements and then reverse the string.
Input: 2, 9, ['m', 'o', '8491', '2733', 'C', 'X', 'z', 'a', '6835', 'S', '8703', '5379', 'F', 'u', '7435', '5075', '7731', '8823', 'P', 'D', '8989', '7773', 'W']

6835azXC27338491o