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, 21, ['C', 'X', 'Z', '9171', '5491', '4627', '9351', 'y', '7845', '2675', 'x', '8317', 'v', 'A', '2595', '6301', '991', 'w', '3563', '5521', 'u', 'H']

u, 5521, 3563, w, 991, 6301, 2595, A, v, 8317, x, 2675, 7845