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.

[Q]: 2, 12, ['W', 'R', 'P', '9411', '179', '5175', '7959', 'o', '4285', 'H', '7535', '3423', 'Q', '7813', '611']
[A]: 32435357H5824o959757159711149PR


[Q]: 11, 13, ['h', 's', 'Q', '9071', 'x', 'G', 'G', '1815', '51', 'N', '3541', '1393', '939', '6351', 'w', 'v', '8171']
[A]: 93939311453


[Q]: 2, 6, ['6471', '7523', '2817', '3727', '4673', 'G', '5691', 'v', 'A', '1297', 'A', 'd', 'm', 'H', 'f', 'k', '2743', 'p', 'J', 'u']
[A]:
G3764727371823257