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: 2, 19, ['8017', 'M', '5167', '8049', '4869', 'b', 'G', 'F', '7051', 'w', 'W', '4555', 'm', 'c', 'g', 'G', '6641', 'K', 'S', 'y', 'M', '5973', 'X']

SK6641Ggcm4555Ww7051FGb486980495167M