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: 7, 8, ['4367', '4367', 'm', '5681', '931', '9039', '8313', '6335', 'w', 'd', 'V', '1741', '1703', 'I', 't', 'a', 'P', 'P', 'x']
Example Output: 53363138

Example Input: 2, 2, ['a', 'J']
Example Output: J

Example Input: 1, 10, ['X', 'g', '6393', 'I', 'I', '6771', 'm', '6523', 'v', 'D', '2441', 'm', 'J', 'V', 'w', '8587']
Example Output:
Dv3256m1776II3936gX