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: 19, 23, ['6999', 'h', '2251', 'Y', 'K', '9723', '4631', 'C', 'N', 'w', '2029', 'l', '7201', 'K', 'G', '3389', '737', '47', '1919', '3161', '5071', 'i', '5621', '6499', '7145', 'k', '6335', 'I', '9237']

5621i507131611919