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, 6, ['H', '103', '7091', 'V', 'T', 'F']
Example Output: FTV1907301H

Example Input: 6, 10, ['P', '6217', 'k', '761', 'L', 'r', '1897', '1503', '7353', '1055', '6661', 'p', 'p', '4313', 'i', 'P', '5081', '3723', 'x', '8455', 'D', 'l', '1379']
Example Output: 5501353730517981r

Example Input: 18, 20, ['6907', 'q', 'Y', '6647', 'o', 'J', '6479', '3585', '2265', '3515', '9353', 'Z', '5359', '5717', '4389', '5753', '9', 'G', 'l', '7003', 'p']
Example Output:
3007lG