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, 4, ['t', '6037', 'I', '2769', 'C']
Example Output: 9672I7306t

Example Input: 2, 4, ['i', '2555', 'G', '4549', 'a', '7443', '5361']
Example Output: 9454G5552

Example Input: 1, 10, ['7463', '4273', 'c', 'H', '1971', 'U', 'H', 'V', '4221', 'e', 'U']
Example Output:
e1224VHU1791Hc37243647