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, 16, ['W', 'v', 'S', '8001', 'r', 'S', 'E', 'b', '1255', 's', 'Y', 'R', '589', '6483', 'C', 'H', '7169', '7693', '2957', '6045', 'X']

HC6483589RYs1255b