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.

19, 20, ['w', '4131', 'C', '719', '2961', 'Q', '4167', '1001', 'p', '965', '1153', '6881', '3361', 'H', 'f', 'V', '9393', 'x', '6091', 'B', '6757', 'U', '2619', '5649', '6447', 'D']
B1906

1, 15, ['5997', '2005', '8529', 'j', 'T', '9729', 'T', 'm', '357', '779', '2253', '725', 'z', '4149', '2913', '8135', 'Q', 'B']
31929414z5273522977753mT9279Tj925850027995

24, 28, ['2845', 'y', '3733', '609', '2735', '6303', 'C', 'z', 'k', '3267', 'j', '9953', 'J', 'Q', '3741', '5125', '941', '2925', 'c', '3059', 'c', '9091', '4151', 'h', 'N', '6507', '7431', '7535']

535713477056Nh