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: 7, 8, ['6403', 'T', '2925', 'k', 'd', '5945', 'Q', '8379', 'R', '5991', '6583', '7577', 'V', 'Q', '5317', 'K', '7367', '5663', 'e', '1603', '8359', 'J', 'B', '3967']
Example Output: 8379Q

Example Input: 1, 8, ['L', '9991', 'J', '5871', 'X', '1467', 'V', 'p', '9893', 'S', '7419']
Example Output: pV1467X5871J9991L

Example Input: 7, 20, ['981', '6473', '1031', '9495', 'F', '9207', '9187', 'G', 'x', 's', 'e', 'R', 'u', 'l', '5119', '9593', '2425', '4813', '9577', '3505', 'L', 'U', 'm', '901', '1485', '3163']
Example Output:
350595774813242595935119luResxG9187