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: 16, 22, ['8139', 'f', 'q', 'y', '6021', '3133', 'r', '3933', '7571', '733', 'G', '6993', 'z', '5053', '9857', '5279', '1547', 'I', 'm', '8789', 'a', 'x', '667', '4433', 'X', '439', '9121', 'd', '3519', '8789']

xa8789mI15475279