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: 7, 9, ['4311', 'Q', 'j', '3613', '9671', 'u', 'y', '3321', '2069', '4299', 'W', 'c', '627', '1327', '9747', 'Q', 'k', '9587', '5911']
Example Output: 96021233y

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: 12, 27, ['F', 'h', 'H', '4481', '6241', 'f', '8741', 'q', '6191', 'm', 'N', 'q', 'p', 'V', '9473', 'D', '4543', '1873', '2657', 'Y', '7727', '3775', '3211', '8577', '3513', 'z', 'D', 'i', '6787']
Example Output:
Dz31537758112357737277Y756237813454D3749Vpq