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: 7, 12, ['x', 'a', 'B', '4517', 'f', 's', 'j', '1665', '7929', '6879', 'r', '6949', '187']

6949, r, 6879, 7929, 1665, j