In this task, you are given inputs i, j, and A, where i and j are integers and A is a list. You need to find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output the resultant 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 concatenate the elements and then reverse the string.

Example Input: 2, 8, ['4363', 'N', 'J', 'Z', '4447', 'P', '6839', 'Q', '85', 'W', 't', 'C', 'X', '3879', 'X', 'Q']
Example Output: Q6839P4447ZJN

Example Input: 12, 20, ['869', '6009', 'Y', '8839', 'j', 'Q', '4485', 'V', 'p', '6129', '4495', '5839', 's', 'B', 'I', 'h', 'q', '6895', '8297', 'A', '8809']
Example Output: A82976895qhIBs5839

Example Input: 6, 13, ['G', 'G', 'l', 'o', '3117', '1279', '9341', 'k', 'w', '6329', '1599', 'u', 'r', '7481', '3661', '4221', 'd', 'U', 'u', 'f', '2203', 'f', 'K', 'f', '1831', '9185', 'G', 'A', 'w']
Example Output:
ru15996329wk93411279