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: 20, 26, ['L', 'a', 'f', 'n', 'G', 'c', '2341', '3327', 'U', '983', 'i', 'u', 'H', '5601', 'P', '2451', '7257', '1989', 'v', 'i', 'p', 'v', '6955', '799', '6937', '2909', 'R', 'e', '8415']

290969377996955vpi