In this task, you are given inputs 'i', 'j', and A, where 'i' and 'j' are integers and A is a list. A list is shown by two brackets and comma-separated numbers and characters inside, like ['1', '12', 'l']. You need to concatenate all elements of A from the ith element to the jth element, and then reverse the resulting 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 reverse first and then concatenate.

Example Input: 1, 4, ['63', '5429', '5563', '2045', '875', '7163', '1869']
Example Output: 54023655924536

Example Input: 22, 27, ['J', '5585', '3627', '1461', 'z', 'r', 'm', '8459', '5831', 'F', 'N', 'O', '1383', 'K', 'S', '3033', 'h', '5351', '2659', 's', 'B', '8067', 'k', '7393', '7027', 'x', 'U', '6565']
Example Output: Ux72073937k7608

Example Input: 4, 14, ['T', '9999', 'Q', '4887', '6833', 'x', 'c', 'b', '3187', '3837', 'o', '5493', '8399', '7641', '3459', 'K', '3195']
Example Output:
146799383945o73837813bcx33867884