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, 8, ['9921', '285', 'U', '1313', '1839', '1449', '6927', '8923', '1861', '6483', '7735', 'K', 'S', '1185', '5013', '5475', 'P', '6503', '5881', '7269', 'K', '3459', 'M', 'x', 'J']

892369271449