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

Ex Output:
9655


Ex Input:
11, 12, ['n', '8991', 'Z', '4113', '1623', '1351', 'l', 'p', 'T', '9931', '11', 'i', '1775', 'h', '7237', '8553', 'Q', 'U', '5395', '8727']

Ex Output:
i11


Ex Input:
7, 12, ['e', '9137', 'E', 'F', 'a', 'P', '4447', '5195', 'M', 'q', 'Y', 'P', 'F', 'm', 's', '6097', '9565', '4585', 'O', 'Q', '6757', 'd']

Ex Output:

PYqM59157444