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: 17, 20, ['8443', '5385', '6571', 'r', '8423', '7411', 'I', '731', 'k', 'e', '9217', 'U', 'E', 'e', 'w', 'T', '7017', 'b', 'P', '6083', '8271', '6823', '9127', 'D']

6083Pb7017