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.

Example Input: 12, 16, ['t', '4893', 'N', 'U', 'E', 'U', 'D', 's', '9541', '651', 'm', '2875', 'c', '6059', '4397', '1263']
Example Output: 126343976059c2875

Example Input: 2, 4, ['F', 'S', 'n', 'e', 'H', 'W', 'b', '1883', '13']
Example Output: enS

Example Input: 2, 3, ['1503', 'v', 'h']
Example Output:
hv