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. 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, ['N', '8965', 'D', 'Q', 'G', 'N', '9201', '4445', '6239', 'L', '5227', '8949', '3451', '7375', 'x', '5187', '1129', '3213', '5411', 'F', 'Q', '1969', '6051', 'M', '3545', '2035']

x, 5187, 1129, 3213, 5411, F