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: 5, 5, ['6131', '6209', 'H', 'g', '4529', '491', '2143', '6281']
Example Output: 9254

Example Input: 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']
Example Output: B1906

Example Input: 3, 13, ['1617', 'q', '6227', '6341', 'e', '3699', 'Y', 'x', 'b', 'v', '3929', 'o', '9047', '949', 'q', '8235', '6605', '9775', '5505', 'E', '4271', '2281', '8451', 'T', '3835', '9545', '6035', 'Q', 'H']
Example Output:
7409o9293vbxY9963e14367226