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: 2, 16, ['9487', '9215', 'n', 'b', '693', 'A', '8161', 's', '373', '761', '4829', '6289', 'A', '6319', 'B', '1023', 'O', 'o', 'G', 'H']

1023B6319A62894829761373s8161A693bn9215