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, 1, ['9675', 'e', '4343', '8021']
Example Output: 5769

Example Input: 7, 8, ['8275', 'o', 'f', '6403', '7399', 'M', 'E', '7879', 'e', 'L', 'F', '2019']
Example Output: 9787E

Example Input: 1, 5, ['5081', 'D', 'n', 'x', 'F', '9947', 'N', '9441', '5951', '3671', 'M', 'I', 'x', '2137', '6667', 'n', '4747', 'D', 'M', '3783', 'u']
Example Output:
FxnD1805