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: 13, 21, ['G', '2901', '5315', '7623', 'C', 'b', 'r', 't', '4573', 'y', '2159', '1235', '723', 'N', '8237', '929', '9721', 'b', '4107', '6539', 'M', 'U', 'O', 'T']

M, 6539, 4107, b, 9721, 929, 8237, N, 723