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: 27, 30, ['5597', 'd', 'R', '9463', '5187', '3625', 'x', 'c', '4851', '435', '5719', 's', '2797', '1659', '2379', 's', '8761', 'F', '5895', '4479', 'j', '6487', 'U', 'I', 'p', 'P', '1493', '7893', 'w', 'C']
Example Output: Cw39873941

Example Input: 12, 25, ['g', '7745', '5039', 'G', '883', '409', '5807', 'M', 'm', 's', 'O', 'q', 't', '1311', '5971', '6881', '9395', '7837', '451', 'E', 'C', 'K', 'x', 'd', 'G', 's', '4225', 'V']
Example Output: GdxKCE15473875939188617951131tq

Example Input: 26, 27, ['Z', 'c', 'G', 'd', '4543', '4403', 'a', 'n', 'b', 'Y', 'A', 'F', '6979', '2369', 'f', '7009', 'Y', '2939', 'w', 'r', '4755', 'l', '7777', 'C', 'I', '3951', '6713']
Example Output:
31761593