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:
6, 23, ['a', 't', 'S', '5485', 'n', '5327', '3827', 'v', 'g', 'h', 't', 'y', 'R', 'm', 'y', '2799', 'L', 'T', 'f', '4167', '8589', 'i', '465', 'B', 'd', '6059', '4833']

Ex Output:
564i98587614fTL9972ymRythgv72837235


Ex Input:
6, 6, ['9431', '6731', 'A', '5153', 'K', '1567', 'D', 'Y', 'a', 'q', 'x']

Ex Output:
7651


Ex Input:
1, 16, ['z', 'H', '8447', 'y', '3589', 'n', '5333', 'C', 'w', 'U', 'a', 'i', 'u', 'n', 'd', '7579', 'x', '7875', '7731', 'y', '5713', 't', 'I', 'S', 'G', '9049', 'w', '3041', 'd']

Ex Output:

9757dnuiaUwC3335n9853y7448Hz