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: 5, 13, ['k', '4885', 'X', '2139', 's', 'l', '9463', 'Q', 'X', '3183', '2857', '1663', '7757', '5269']
Example Output: 7757166328573183XQ9463ls

Example Input: 9, 21, ['d', 'K', '4747', 'J', '5273', 'R', '5449', '6823', '2003', 'M', '3201', 'D', '5025', '5151', 't', '5203', '1073', 'E', 'O', 'M', 'R', '3039', '4781', 'b', '6819', '4025', '9125', '3733', 'x']
Example Output: RMOE10735203t51515025D3201M2003

Example Input: 2, 15, ['a', 'b', 'v', '6895', 'C', '5927', 'u', '2775', '1009', 'D', '4029', 'l', 'r', '4337', '4411', 'n', 'J']
Example Output:
44114337rl4029D10092775u5927C6895vb