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: 5, 13, ['8481', 'A', '9185', 'G', 'D', 'W', 'f', '6371', '6739', '9313', 'w', '5219', 'o', 'K', '6557', 'E', '9619', 'o', '8785', 'u']

o5219w931367396371fWD