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: 9, 15, ['H', '5787', '6905', 'r', '7021', '5035', '3681', '7823', 'z', '5851', 'w', 'z', 'u', 'd', '7089', '7715', 'E', '8445']

7089duzw5851z