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: 5, 7, ['1245', '6761', 'w', 'A', '2303', '1045', 'H', '6193', '6147', 'H', 'S', '305', '7895']
Example Output: H54013032

Example Input: 2, 2, ['G', 'S']
Example Output: S

Example Input: 5, 6, ['6543', 'i', '5169', 'T', '2781', '2209', '6601', '5915', '4347', '7017', '4719', '7283', 's', '4151', '4003', 'P', '9101', '7275', '3213', '8535', 'T', '7093']
Example Output:
90221872