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:
9, 13, ['z', '2819', '4327', 's', '9271', '3601', '2475', 'L', '7129', '7513', '6649', '9333', '9507', '2411', 'L', '1905', '7315', '6663', '4511', 'h', 'h', '4345', 'd', 'I']

Ex Output:
70593339946631579217


Ex Input:
10, 11, ['q', '6245', 'O', '5361', '8343', 'D', 'X', '6285', 'F', 'q', '4911', '9613', 'z', '159', 'Y', '1341']

Ex Output:
1194q


Ex Input:
13, 15, ['R', 'B', 'I', 'q', 'a', 'M', 'U', '3627', '2757', '9601', '2989', 'C', 'P', 's', 'w', '6145', '4495', 'e', '1351']

Ex Output:

wsP