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: 13, 15, ['W', '2713', 'x', 'J', 'l', '4677', '7899', 't', '701', 'x', 'j', '2079', '877', 'y', '9131', 'r', '8353', '2575', '8805', '8169']

9131y877