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, 5, ['n', '8897', '6611', '2857', 'p']

Ex Output:
p758211667988


Ex Input:
15, 25, ['n', '4163', '6355', '4085', 'u', 'X', '7669', 'c', '791', '7517', '3153', 'k', 'S', '1263', 'P', '1613', 'q', '7693', '339', '7041', '3591', '9429', '4695', '2959', 'm', 'g', '2827', '6699', '1243', 'Y']

Ex Output:
m959259649249195314079333967q3161P


Ex Input:
9, 14, ['1627', 'T', 'k', 'T', '1935', '5037', 'L', '9523', 'l', '7447', '2525', '9213', '4377', 'j', 'T', '5199', 't', '703', '939', '9231', 'E', 'm', 'z', 'N', '3667', 'S', '225', 'H', 's', 'S']

Ex Output:

j7734312952527447l