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: 4, 14, ['9845', '3299', '7665', '251', '1493', '6871', '135', '569', 'a', 's', 'G', '1261', 'J', '3443', '3079', 'n', '4421', 'Q', 'o', '6001', 'S']

3443J1261Gsa56913568711493251