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: 6, 18, ['O', '2429', 'B', 'L', 's', '3771', 'S', 'z', '179', '9293', '89', '4807', '7053', '9985', '9923', '285', 'B', '2237', '7285', '4063', 's', '9463', 'c', 'F', '9289', 'S']

2237B2859923998570534807899293179zS3771