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: 2, 3, ['4541', 'B', '9655', '8453', 'r', 'i', 'P']
Example Output: 5569B

Example Input: 9, 18, ['k', 'p', 'h', 'h', '23', 'j', 'H', '8681', 'P', 'c', '8375', '4243', '8007', 'z', '2155', '9641', 'J', 'k', 'Z']
Example Output: kJ14695512z700834245738cP

Example Input: 8, 19, ['8801', '8943', '3539', '6283', 'u', '3851', 'r', '3193', '3639', 'B', 's', '6473', '9879', 'P', '251', 'a', '6813', 'x', '1949', 'K', 'P', '3603', '719', 'v', '471', 'p', 'I']
Example Output:
9491x3186a152P97893746sB93633913