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 list all elements of A from the ith element to the jth element in the reverse order. 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.
Input: 9, 20, ['W', 'K', 'l', 'L', 'l', 'X', 'k', 'H', 'r', '2107', 'M', 'r', '865', 't', 'D', 'N', '461', 'R', '6959', '235', '531']

235, 6959, R, 461, N, D, t, 865, r, M, 2107, r