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: 12, 20, ['4439', '4907', '7019', '2015', 'D', 'L', 'F', '9031', '9033', '5747', 'J', 'N', 'w', '4105', '2469', '3903', '6719', '421', '2233', 'Z', 'w', '3091', '6697', 'U', 'T', '2899', '6391', '9663', 'z', '6601']

Z22334216719390324694105wN