Definition: 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.
Input: 21, 21, ['8271', 'q', '5283', '2905', '7741', '4461', 'v', '3823', 'n', 'd', '6465', '2721', 'Y', 'B', '509', '7247', '3855', '7777', 'w', 'b', 'F', '5349', 'w', 'c', '6205']

F