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.

[EX Q]: 22, 26, ['O', '9947', '2663', '8883', 'o', '1499', 'u', 'n', 's', 'k', '4637', 'e', 'G', '8807', '6975', '3263', '4157', '8213', '5235', 'H', '4915', '7443', 'i', 'h', 'j', '6837', '983', '8793']
[EX A]: 7386jhi3447

[EX Q]: 8, 8, ['911', 'n', '261', 'J', '1181', '6903', '2085', '5225', 'N', '4041', '4891', '6241']
[EX A]: 5225

[EX Q]: 8, 9, ['E', '4081', '2021', '2585', 'I', '6983', '3271', 'K', '4793', 'd', '2835', 'Q', 'T', 'f', '2133', 's', 'G', '93', 'B', 'n', 'b', 'v', 'N', 'B', '6625', 'v', 'd', '5407']
[EX A]:
3974K