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: 13, 14, ['5913', '6823', '5945', 'a', '8191', 's', '5405', 'l', '2515', '3901', 'R', '1575', 'e', 'P', '9231', '39', '6651', 'N']
Example Output: Pe

Example Input: 3, 8, ['b', 'y', '8779', '3949', 'c', 'a', '111', '6649']
Example Output: 9466111ac94939778

Example Input: 5, 6, ['u', 'O', 'l', '9119', 'P', '6983', 'H', '6701']
Example Output:
3896P