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, 10, ['H', 'G', '4485', '9051', 'K', 'B', '8499', 'L', 'b', '4663', 'z', '55', '787', 'A', 'R', '271', 'v', '9547', 'B', 'N', 'W']

4663bL8499B