In this task, you are given inputs 'i', 'j', and A, where 'i' and 'j' are integers and A is a list. A list is shown by two brackets and comma-separated numbers and characters inside, like ['1', '12', 'l']. You need to concatenate all elements of A from the ith element to the jth element, and then reverse the resulting 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 reverse first and then concatenate.

Example Input: 2, 6, ['415', '3603', 'l', 'C', '9471', 'z', '4087', 'Y', 's']
Example Output: z1749Cl3063

Example Input: 2, 17, ['4379', 'I', '2897', 't', 'H', 'W', 'z', 'i', 'f', 'b', '2901', '9357', 'c', 'Y', 'R', '2757', 'J', '9265', 'I', 's', 'j', '2617', 'q', 'a']
Example Output: J7572RYc75391092bfizWHt7982I

Example Input: 2, 17, ['I', '949', 'E', '2899', '2871', 'F', 'B', 'G', '7271', '1245', '7977', '1369', 'L', '2085', '4901', '3417', 'z']
Example Output:
z714310945802L9631779754211727GBF17829982E949