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: 3, 21, ['V', 'q', '2117', '5223', '8257', '5569', 'A', '3607', 'M', '8053', 'e', '1479', 'B', 'w', 'm', 'M', 'H', '273', 'J', '3799', 'G', 'f', '2479', 'v', 'T', '5899', 'C', 'G']

G3799J273HMmwB1479e8053M3607A5569825752232117