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: 7, 9, ['4311', 'Q', 'j', '3613', '9671', 'u', 'y', '3321', '2069', '4299', 'W', 'c', '627', '1327', '9747', 'Q', 'k', '9587', '5911']
Example Output: 96021233y

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: 3, 13, ['7633', '2353', 'I', '1293', '4053', '2629', '7909', 'A', '1317', '9601', 'z', '6837', 'g', '887', '5821', 'J', '583', 'g', '5557', 'I', 'A', '6341', '1901', '1749']
Example Output:
g7386z10697131A9097926235043921I