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: 15, 20, ['3757', 'z', 'G', 'f', 'p', 'U', 'c', '689', '6995', '1057', 'h', 'q', '7801', 'k', 'C', 'A', 'w', 'X', 'b', 'r', '6451']

r, b, X, w, A, C