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: 3, 3, ['2047', 'R', '6885', '1243', 'Z']
Example Output: 5886

Example Input: 5, 8, ['g', 'a', '2875', '9581', '3263', '3103', 'J', 'b', 'h']
Example Output: bJ30133623

Example Input: 4, 17, ['8245', 'w', 'n', '5657', 'W', 'a', '187', 'O', 'K', 'K', 'X', 'W', 'F', 'D', '5079', 'A', '9629']
Example Output:
9269A9705DFWXKKO781aW7565