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: 10, 11, ['5441', 'k', '9573', '4937', '7305', '2303', 'P', 'P', 'N', '2549', 'C', '5865', 'M', '9033', 'k', 'A']
Example Output: C9452

Example Input: 1, 2, ['Q', '6249', 'm', 'H', 'x', 'b', 'Z', 'z', '15']
Example Output: 9426Q

Example Input: 13, 13, ['I', 'c', '9889', 'm', '6641', '7977', '461', 'j', '2277', 'W', 'p', 'e', 'r', 'l', 'u', '9581', 'Q', 'L', '6129', 'A', 'y', '4113', '6169', 'F', 'c']
Example Output:
r