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.

[Q]: 1, 9, ['3207', 'E', 'h', 'h', 'I', '4019', 'v', 'O', 'r', 'Q', '9685', 'I', '8665', '7037', '5181', 'v', 'W', 'a', 'p', '2959', 'f', 'H', '3121']
[A]: rOv9104IhhE7023


[Q]: 15, 19, ['s', '2569', '1713', 't', 'R', 'G', '5779', 'o', '2667', 'W', '9283', '2419', '6745', 'f', 's', '4131', '8337', 'q', '5275', 'Y', 'N', 'k', 'K', '1937', '3983', '759', '471', 'J', '3213']
[A]: 5725q73381314s


[Q]: 2, 2, ['p', 'W', 'n']
[A]:
W