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: 5, 20, ['5377', 'j', 'j', '1767', '2103', '9547', 'I', 'M', '4067', '2571', 'V', 'Z', 'O', '3421', 'V', 'v', '4919', 'X', '307', 'M', '1603']
Example Output: M307X4919vV3421OZV25714067MI95472103

Example Input: 6, 10, ['W', '4485', 'x', '4885', '779', '5681', '5085', '3523', '2869', '3817', 'D', 'J', '5781', '4703', '8409', '7397', '1743', 'n', 'O', 'O', 'I', '2341', 'd']
Example Output: 38172869352350855681

Example Input: 13, 17, ['x', '1181', '1139', 'm', 'o', '5411', '5253', '689', 'B', '1715', '6863', 'z', 'p', '3815', '2749', 'a', 'M', '957', 'E', '9431', 'n', 'n', '1693', 'f']
Example Output:
Ma27493815p