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: 5, 11, ['4381', '7607', '3995', '7639', 'W', '2377', '2639', 'Z', 'D', '4511', 'K', '3211', '6939', 'n', 'J', 'd', '9647']
Example Output: K1154DZ93627732W

Example Input: 2, 4, ['4047', 'S', '4249', '1735', '207']
Example Output: 53719424S

Example Input: 7, 17, ['1537', '2113', 'H', 'U', '3271', 'b', '1681', 'l', 'R', 'f', 'A', '975', 'U', '1747', '1393', '5715', '4257', '9597', '9035', '2489', '4259', '6605', 'L', 'F', 'P']
Example Output:
7524517539317471U579AfRl1861