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, 11, ['i', 'w', 'V', '2695', 'I', 'q', 'o', 'X', 'u', 's', 'e', 'f', '7693', 'q', '5845', 'e', '4161', '3059', 'F', '6863', '985', 'D', '3643', '383', 'A', '7515', '4335']
Example Output: es

Example Input: 2, 7, ['9969', 'u', '9811', 't', 'z', '8347', 'i', 'O', '5897']
Example Output: i7438zt1189u

Example Input: 3, 6, ['6753', 'c', 's', '5395', 'b', '3395', '3121', '8505', '4645', '1287', 'Q', 'x', 't', 'B', 'w', '2831', 'H', '4089', 'a', '6469']
Example Output:
5933b5935s