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, 7, ['P', 'h', '1443', 'b', 'K', '2641', '3831']
Example Output: 13831462Kb3441hP

Example Input: 4, 7, ['1247', 's', 'J', 'w', 'X', '7211', 'c']
Example Output: c1127Xw

Example Input: 4, 10, ['8709', '4891', '5489', '9791', 'T', '4959', '9697', '7691', 'h', '2795', '1355', 'i', 'f', '977', '9311', '8043', 'k', 'R', '6119', '8337']
Example Output:
5972h196779699594T1979