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: 2, 13, ['o', 'B', '5117', 'h', '3007', '2037', 'j', '2651', 'b', 'b', '8977', 'v', 'U', 'l', '3949', 'e', 'x', '6539', '3663', '1359', '2851']
Example Output: Uv7798bb1562j73027003h7115B

Example Input: 3, 22, ['5347', 'e', 'a', 'i', 'o', 'W', '3101', '5381', 'u', '8799', 'r', '7559', '9931', 'V', 'l', 'v', 's', 'q', 'C', 'o', '7803', 'c']
Example Output: c3087oCqsvlV13999557r9978u18351013Woia

Example Input: 3, 3, ['6545', 'y', '2585', '7813', 'H', 'T', '861', '3853', 'H', 'H', 'X', '1963', '449', '571', '8853', '4859', 'N', 'J', '3379', '4799', 'G', 'S', 'n']
Example Output:
5852