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, 26, ['R', '7859', 'I', 'l', '7007', 'S', '5311', '4791', 'k', '1975', '3623', 'I', 'O', 'q', '4087', '5425', '6101', '4191', '6581', 'K', '2549', 'o', '7979', '6077', 'B', 'Z', 'G']

ZB60777979o2549K6581419161015425