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: 10, 20, ['p', 'b', 'X', 'l', '3725', 'O', '9393', '6645', '5363', '4873', 'U', '5129', 'Q', 'b', '2435', 'D', '7503', 'M', '9785', 'I']

I, 9785, M, 7503, D, 2435, b, Q, 5129, U, 4873