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, 13, ['D', 'A', '4221', '7301', '1937', 'r', '5105', 'q', 'F', 'j', '9441', '6391', '7081', 'l', '6569', 'i', '8871', '5985']
Example Output: 180719361449j

Example Input: 4, 8, ['g', '6711', '6701', 'p', '6345', 'W', '9953', '3185', 'W']
Example Output: 58133599W5436p

Example Input: 8, 15, ['Z', '7291', 'd', '6301', 'N', 'Y', 'T', 'v', 'R', '419', 'V', '3403', '2403', 'L', 'v', 'i', '3723', '709', 'x', '2915', 'A', 'f', '9783', 'l', 'i']
Example Output:
vL30423043V914Rv