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: 4, 7, ['p', '3407', '6863', 'U', '2121', 'x', '9249', 'H', 'U', '6123', 'W', '6979']

9249, x, 2121, U