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: 8, 13, ['7725', '8399', 'P', '9663', '4059', '5265', '1703', 'I', 'E', '1587', 'X', 'N', 'W', 'K', 'j', 'R', 'P']
Example Output: WNX7851EI

Example Input: 6, 6, ['X', '939', 'u', 'V', 'Z', 'x', 't', '5703', '5669', 'z', 'D', '7013', '9807', 'N', 's', '5075', 'd', 'T', '1275', '1475', 'r', 'k']
Example Output: x

Example Input: 2, 5, ['P', 'Z', '9083', 'L', '3063', '4929']
Example Output:
3603L3809Z