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, 13, ['X', 'L', '8787', 'b', '2899', '1375', '4347', 'f', '9399', 'V', '291', '5905', 'U', '6565', 'P', 'Y', 'v', '6299', 'V', '3017', '5823', 'A', '7985']

U