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, 9, ['v', '289', 'O', 'w', 'y', 'r', 's', 'T', '659', 'y', 'a', '9161', 'Y', '5075', 'M', 'L', '5915']
Example Output: 956TsrywO982v

Example Input: 1, 8, ['7991', '7999', '8575', '4211', '6003', '2483', '7877', '7249', 'K', '21']
Example Output: 94277787384230061124575899971997

Example Input: 5, 5, ['b', 'K', '3877', '481', 'I', 'w', 'O', '4647', 'C', 'j', '971', '5797', 'I', 's', '291', '8223', '8479', 'V', '2281', 'y', 'q', '1163', 'D', 'P']
Example Output:
I