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: Consider Input: 5, 13, ['k', '4885', 'X', '2139', 's', 'l', '9463', 'Q', 'X', '3183', '2857', '1663', '7757', '5269']

Output: 7757166328573183XQ9463ls


Input: Consider Input: 9, 16, ['h', '9775', 'a', '8833', '5813', '7225', 'o', 'i', 'i', '6747', '521', '8947', '2191', 'h', 'v', '8275']

Output: 8275vh219189475216747i


Input: Consider Input: 6, 20, ['7681', '2651', 'r', 'C', '3097', '5885', '2427', 'U', '4805', '9199', '6823', '7851', '7949', 'r', '7855', '3707', 's', 'S', '4443', 'H', '3343', 'y', 'J', 'p', 'K', '7345']


Output: H4443Ss37077855r79497851682391994805U24275885