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, 22, ['m', '1863', 'y', 'w', '4919', '4857', 'S', 't', 'Z', 'n', 'X', '8677', '8587', '7313', 'G', 'U', 'P', 'G', 'E', '2083', 'L', 'k', '7637', '5725', '9821', 'S']
Example Output: kL2083EGPUG

Example Input: 5, 11, ['w', 'r', 'K', '8297', 'v', '953', '2291', '5267', 'u', 'x', 'I']
Example Output: Ixu52672291953v

Example Input: 17, 19, ['f', '8827', 'z', 'c', '4237', 's', 'e', 'U', '4391', 'o', '83', 'H', 'W', '3115', 'O', '7387', '8873', '487', '5601', '8645', 'N']
Example Output:
56014878873