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: 10, 13, ['D', 'A', '4221', '7301', '1937', 'r', '5105', 'q', 'F', 'j', '9441', '6391', '7081', 'l', '6569', 'i', '8871', '5985']
Example Output: 180719361449j

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: 2, 7, ['A', 'r', '4661', '5417', '3233', 'l', 'y', '4773', '4449', 'S', 'D', 'Y', '4885', '5583', 'Q', '7169', 'b', '767', '2175', 'l', 'n', 'z', '1589', '6543', 'g']
Example Output:
yl332371451664r