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:
5, 9, ['4175', '3747', 'b', 'u', 'V', 'R', '2345', '3543', 'c', '71', '2477', 'X', '7045', '9019', '5773', '2277', '5989', '331', 'I', '5997', 'J', '5291', 'm', 'r', 'p', '2609', '7261']

Ex Output:
c34535432RV


Ex Input:
1, 1, ['C', '6223']

Ex Output:
C


Ex Input:
8, 11, ['399', 'T', 'g', 'e', 'P', 'V', 'p', '8621', 'Y', '7601', '7169', 'H', '7185', 'Z', 'l', 'i', '5567', 'T', 'Q']

Ex Output:

96171067Y1268