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, 17, ['1317', '9121', '9155', 'R', 'K', 'N', 'i', '4379', 'g', '7977', '8483', '5501', '3111', '871', '7481', 'h', 'T', 'Y', 'w', '8907', '3839', '1493', 'g', 'I', 'n']
Example Output: Th18471781113105538487797g9734iNKR551912197131

Example Input: 3, 5, ['2849', 'J', 'L', '2347', '7219', 'a', 'Q', 'U', '6865', 'O']
Example Output: 91277432L

Example Input: 4, 15, ['6017', 'k', '5427', 'c', '4877', '301', '1825', 'x', 'f', '313', 'w', 'y', 'h', '711', 'X', '4553', '8829', '6579', 'P', '4839']
Example Output:
X117hyw313fx52811037784c