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, ['V', 'O', '511', 'c', '4015', 'P', 'R', 'L', '115', 'L', '6809', 'S', '2397', 'X', 'e', 'Y', 'I', 'O', '8125', 'u', 'r', '9403', 'Q', 'i', '5835', 'U', 'm']
[EX A]: U5385iQ3049

[EX Q]: 16, 17, ['E', '3657', 'O', 'B', 'V', '3761', 'v', '563', '1623', 'J', '5961', 'h', '5241', '9983', '3325', '1513', 'R']
[EX A]: R3151

[EX Q]: 4, 8, ['9309', '3911', '8335', '8531', 'G', '6655', '125', 'c', '4009', 'K', 'U', '5705', 'c', '5209', 'g', 'k', '6135', 'i', '6429', 'n', 'B', 't', 'H', 'N', 'i', 'E']
[EX A]:
c5215566G1358