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: 1, 16, ['B', '1413', '8497', '9959', 'L', '7243', '5907', '4145', '8487', 'u', 'U', 'H', '3423', '7389', '6747', 'H', 'U', 'D', 'E', 'N', 'h', 'U', 'U', '5035']

H674773893423HUu8487414559077243L995984971413B