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.

Q: 2, 2, ['799', '3533', '7841']

A: 3353
****
Q: 2, 6, ['1467', 'm', '9771', '6533', 'm', 'x', 'c', 'd', '3139']

A: xm33561779m
****
Q: 4, 12, ['7711', '7613', 'k', '9323', '5415', 'i', '9051', '4141', 'T', 'i', '9461', '3281', '5345', '9217', 'p', '9387', '6757', '8033', 'U', 'J', 'O', '4423', '69', '3219', '1467', '5889', 'a', 'L', '3983']

A:
18231649iT14141509i51453239
****