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: 20, 24, ['D', '6647', '369', '1137', 'e', 'y', '8553', '5951', 'A', '7751', 'T', 'b', '1767', 'f', 'J', '1345', '7841', '6123', 'X', 'T', 'E', 'o', 'u', '5485', 'P', '7199', '949']

5485uoET