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: 6, 8, ['6797', 'p', '5191', 'S', '2771', '8269', 'H', '6517', '985', 'U', '4179', 'F', 'j', 'f', 'q', '5935', 'T', 'p', 'f', '8125', 'L', '8255', '3733', '1011', 'w']

6517H8269