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: 8, 15, ['8543', '5713', '7587', '2901', 'S', 'M', 'G', 'R', 'C', '5081', 'Y', '7905', '7007', '4525', 'a']

a452570077905Y5081CR