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: 3, 3, ['H', '7843', '2823', '529']
Example Output: 3282

Example Input: 21, 24, ['t', '1315', '1977', '8701', 'w', '2899', '9389', 'c', 'F', '2949', '9591', 'Y', '3127', '5887', 'D', '6527', 'I', '3229', '6585', '5375', '6289', 'j', '1775', 'n', 'O', '4741']
Example Output: n5771j9826

Example Input: 3, 9, ['7773', '3809', '8361', '6051', 'i', '2657', 'E', '435', 'X', 'l', '4007', 'n', '7147', 'Y', '2145', 'B', '1073', '6171', 'H', '4485', 'A', '6007']
Example Output:
X534E7562i15061638