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: 11, 12, ['n', '8991', 'Z', '4113', '1623', '1351', 'l', 'p', 'T', '9931', '11', 'i', '1775', 'h', '7237', '8553', 'Q', 'U', '5395', '8727']
Example Output: i11

Example Input: 16, 26, ['d', 'o', '8115', '7489', 'n', '9243', '5821', '5381', '5059', 'V', 'T', '6557', '2885', '721', '3867', '5941', '7613', '2933', '253', 'l', '7339', '3743', 'U', '7921', 'Q', '2077']
Example Output: 7702Q1297U34739337l352339231671495

Example Input: 13, 14, ['a', '1151', 'D', 'f', 'S', 'z', '6191', 'M', '8383', '1675', '7305', '2965', 'X', '6849', '8461', '4135', 'p', 'j', '461', '9401', 'o', 'n']
Example Output:
9486X