In this task, you are given inputs i, j, and A, where i and j are integers and A is a list. You need to find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output the resultant 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 concatenate the elements and then reverse the string.

[Q]: 12, 20, ['869', '6009', 'Y', '8839', 'j', 'Q', '4485', 'V', 'p', '6129', '4495', '5839', 's', 'B', 'I', 'h', 'q', '6895', '8297', 'A', '8809']
[A]: A82976895qhIBs5839


[Q]: 5, 6, ['4651', '5211', '1115', 'b', '7125', '4831', '623', 'G']
[A]: 48317125


[Q]: 15, 16, ['1829', '2905', 'g', '3969', 'N', '8721', 'i', '6893', 'l', '8695', '9717', 'I', '3203', 'G', 'b', '671', '7581', 'S', 'J', 'V', '3443', '3591', '1679', '1829']
[A]:
671b