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, 2, ['3303', '6127']
Example Output: 72163033

Example Input: 1, 3, ['4101', '9767', 'q', 'Z', '6853', '3643']
Example Output: q76791014

Example Input: 4, 14, ['4913', 'R', 'A', 'c', 'C', 'T', '3171', 'P', 'i', '1025', '3749', '9419', '3707', '3673', '4871', 'r', 'i', '3981', '1301', 'C', 'b']
Example Output:
37637073914994735201iP1713TCc