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 find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output the resultant string. 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. Perform the operations in order, i.e., do not concatenate the elements and then reverse the string.
Input: 13, 20, ['4501', '9687', '4861', 'W', 'K', '1195', 'X', '8867', '5549', 'f', '4603', '6835', 'i', 'v', 'G', 'p', '7211', '4165', 'D', '8713']

8713D41657211pGvi