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: 9, 19, ['5843', 'b', '161', 'Z', 'h', '2323', '25', 'S', 'Z', 'A', 'l', 'R', 'O', '4543', 'd', 'J', '1667', 'I', 'N', 'K', 'T', '2767', '4409', 'B']
Example Output: NI7661Jd3454ORlAZ

Example Input: 3, 13, ['9827', '3335', 'K', 'p', '7941', 'U', '4513', 'l', 'B', '179', '9825', '5437', 'u', '7853', '8907', 't', 'V', 'U', 'K', '7159', '6077', 'n']
Example Output: u73455289971Bl3154U1497pK

Example Input: 6, 20, ['S', 'y', 'r', 'v', '4309', 'v', 'M', '1887', 'H', 'H', 'x', 'S', '7111', '9971', 'M', 'P', 'L', '1177', '2823', 'E', '2803', 'q']
Example Output:
E32827711LPM17991117SxHH7881Mv