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: 1, 9, ['3207', 'E', 'h', 'h', 'I', '4019', 'v', 'O', 'r', 'Q', '9685', 'I', '8665', '7037', '5181', 'v', 'W', 'a', 'p', '2959', 'f', 'H', '3121']
Example Output: rOv9104IhhE7023

Example Input: 4, 7, ['C', 'j', 'F', '495', 'H', '6595', 'h', '7567', 'f']
Example Output: h5956H594

Example Input: 2, 8, ['e', 'D', '7767', '387', 'e', 's', 'k', 'l', '5349']
Example Output:
lkse7837677D