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: 3, 9, ['7671', '575', 'l', '989', '7015', 'X', 'x', '3543', '3771', '905', '3815', 's']
Example Output: 17733453xX5107989l

Example Input: 3, 4, ['19', '2669', 'v', 'd', '2221', '4219', 'A', 'P', '7499', 'z', 'm', 'l', '427', 'u']
Example Output: dv

Example Input: 2, 9, ['X', '1179', '9797', '6391', 'K', 'h', 'c', 'P', 'n', '1009', 'K', '639', '9929', 'M', '9113', 'O', 'A', 'v', '4239', 'r', 'X', 'Z', 'f']
Example Output:
nPchK193679799711