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: 6, 15, ['A', '8555', 'r', '571', 'u', 'P', '5715', 'G', '5731', 'p', '633', 'k', '4309', 'k', 'D', '4443', 'S', '5439', 'C', 'i', '1327']

Dk4309k633p5731G5715P