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.
2, 16, ['2089', '4403', 'S', '5285', 'M', 'o', '9921', 'W', 'N', 'q', '5983', 'T', '4693', 'x', 'q', 'L', 'i', '2121', '6991']