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.

Example Input: 15, 18, ['9099', '2041', '7065', '1323', '2267', '5877', 'r', 'j', '4411', 'u', 'V', '4919', '6401', '8449', 'X', 'H', 'z', 's', '2543', '4643']
Example Output: szHX

Example Input: 9, 12, ['8329', '2479', '5903', '7277', 'm', 'E', 'j', '6243', '6729', 'O', '271', 'M', '5955', 'P', '9', 'D', '2701', '7197', '3137', 'y', '7811', 'L']
Example Output: M271O6729

Example Input: 13, 21, ['5857', '907', 'Z', '537', '4147', 'g', 'w', '1185', '5033', 'h', '9549', 'g', '6575', 'T', '8835', '3327', 'n', '25', '803', '8611', '6343', '569', 'W', 'U', '2369', '205', 'X', 'j', '7539']
Example Output:
6343861180325n33278835T6575