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: 3, 3, ['x', 'v', 'p', '4337', '635', '8927', 'B']
Example Output: p

Example Input: 1, 9, ['g', '3007', '4827', '6665', '711', '6997', '137', 'X', '7383', 'q', 'v', 'K', '267', '3691', 'G', '7925', '8327', 'l']
Example Output: 3837X7317996117566672847003g

Example Input: 18, 22, ['I', '4687', 'V', 'y', 'U', '2255', '6971', '793', 'W', 'O', '3233', '5061', '6355', 'X', 'U', '8435', 'e', 'z', 'u', '6055', 'd', '1493', 'e', '4453', 'X']
Example Output:
3941d5506uz