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: 11, 15, ['807', '2753', 'L', '8633', '7203', 'j', 'a', 'r', 'R', 'q', 'g', 'B', 't', '1373', '3371', 'S', '9977', 'y']
Example Output: 17333731tBg

Example Input: 8, 10, ['f', 'F', '4775', 'F', 'w', 'r', 'v', 'S', 'N', '479', 'e', 'u', 'e', 'e', '2081']
Example Output: 974NS

Example Input: 2, 3, ['Y', 'A', 'e', '3165', '589', '4125', 'T', '2285', '727', 'W', 'a', 'f', 'J', '6065', 'Y', 'H', 'U', '5989', 'P', '9467', 'z', 'S', '3185', '7147', 'L', '3215']
Example Output:
eA