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.

Example Input: 4, 7, ['n', 'X', '7943', '49', 'm', '4459', 'O', 'a', '4759', '1551', 'c', '6053', '6213', '6997', '7613', '669', 'e']
Example Output: O4459m49

Example Input: 1, 2, ['q', '3853', 'e', 'j']
Example Output: 3853q

Example Input: 12, 14, ['L', '7859', 'o', '6781', '1155', '1651', '591', 'o', 'm', '9161', 'u', '2587', '3993', '1489', '7279', '123', '9127', 't', 'X', '2951']
Example Output:
148939932587