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, 3, ['5231', 'n', '6293', '4509', 'w', '545', '4403', '961', '3213', 'y', '715', 'Z', 'd', 'O', 'U', 'e', 'L', '8375']
Example Output: 3926n1325

Example Input: 1, 2, ['S', '7763']
Example Output: 3677S

Example Input: 14, 15, ['5669', '1393', 'q', '1371', '7069', 'c', '8713', '2163', '3187', 'p', '7111', 'o', 'U', '4143', '4307', '835', 'F', 'q']
Example Output:
70343414