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, 7, ['u', '1307', 'F', '8027', 'r', '4559', 'F', 'm', '9805', '5063']
Example Output: F9554r7208F

Example Input: 2, 4, ['5983', 'I', '9531', 'U', 'P', '1383', 'Y']
Example Output: U1359I

Example Input: 13, 13, ['135', 'Y', 'H', 'Q', 'w', '8637', '2531', 'O', '3965', '5383', 'w', '1747', 'p', '6293', '5807', '1351', '1639', 'O']
Example Output:
p