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: 4, 7, ['1247', 's', 'J', 'w', 'X', '7211', 'c']
Example Output: c1127Xw

Example Input: 14, 15, ['3351', '8899', 'M', 'm', '2939', 'e', '1681', '9189', 'b', 'j', 'L', '1927', '2855', '2993', 'F', 'P', '3261', '3185', 'U', '8887', 'M', '9865']
Example Output: F3992

Example Input: 8, 17, ['9981', 'Q', '6081', '2785', 'B', '5907', '8573', 'H', '4055', '4923', 'g', 'w', '2403', 'r', 'f', '1783', 'o']
Example Output:
o3871fr3042wg32945504H