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.

Ex Input:
1, 3, ['D', 'a', '1119', 'R', 'b', 'N', 'a', 'n', '4229']

Ex Output:
9111aD


Ex Input:
2, 2, ['w', '5569', '6229', 'b']

Ex Output:
9655


Ex Input:
11, 14, ['51', '8009', 'm', 'O', 'w', '1331', '5793', 'Y', '8013', 'Z', 't', 'L', '2505', '2311', '4457', 'A', '1541']

Ex Output:

11325052Lt